140554440 has 320 divisors, whose sum is σ = 526901760. Its totient is φ = 33384960.

The previous prime is 140554433. The next prime is 140554459. The reversal of 140554440 is 44455041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1979605 + ... + 1979675.

It is an arithmetic number, because the mean of its divisors is an integer number (1646568).

Almost surely, 2^140554440 is an apocalyptic number.

140554440 is a gapful number since it is divisible by the number (10) 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 140554440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263450880).

140554440 is an abundant number, since it is smaller than the sum of its proper divisors (386347320).

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

140554440 is a wasteful number, since it uses less digits than its factorization.

140554440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 140554440 is about 11855.5657815222. The cubic root of 140554440 is about 519.9339659738.

The spelling of 140554440 in words is "one hundred forty million, five hundred fifty-four thousand, four hundred forty".