140424102 has 144 divisors (see below), whose sum is σ = 392635152. Its totient is φ = 35925120.

The previous prime is 140424091. The next prime is 140424103. The reversal of 140424102 is 201424041.

140424102 is a `hidden beast` number, since 140 + 424 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424103) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 424077 + ... + 424407.

It is an arithmetic number, because the mean of its divisors is an integer number (2726633).

Almost surely, 2^140424102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140424102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196317576).

140424102 is an abundant number, since it is smaller than the sum of its proper divisors (252211050).

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

140424102 is a wasteful number, since it uses less digits than its factorization.

140424102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 140424102 is about 11850.0675947439. The cubic root of 140424102 is about 519.7732023788.

Adding to 140424102 its reverse (201424041), we get a palindrome (341848143).

The spelling of 140424102 in words is "one hundred forty million, four hundred twenty-four thousand, one hundred two".