140622944 has 144 divisors (see below), whose sum is σ = 364041216. Its totient is φ = 52819200.

The previous prime is 140622899. The next prime is 140622949. The reversal of 140622944 is 449226041.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 140622944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140622949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 534557 + ... + 534819.

It is an arithmetic number, because the mean of its divisors is an integer number (2528064).

Almost surely, 2^140622944 is an apocalyptic number.

140622944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140622944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182020608).

140622944 is an abundant number, since it is smaller than the sum of its proper divisors (223418272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140622944 is a wasteful number, since it uses less digits than its factorization.

140622944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 140622944 is about 11858.4545367430. The cubic root of 140622944 is about 520.0184214381.

Adding to 140622944 its reverse (449226041), we get a palindrome (589848985).

The spelling of 140622944 in words is "one hundred forty million, six hundred twenty-two thousand, nine hundred forty-four".