140492556 has 120 divisors (see below), whose sum is σ = 406153440. Its totient is φ = 42121728.

The previous prime is 140492551. The next prime is 140492557. The reversal of 140492556 is 655294041.

140492556 is a `hidden beast` number, since 14 + 0 + 4 + 92 + 556 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 140492556.

It is not an unprimeable number, because it can be changed into a prime (140492551) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 126130 + ... + 127238.

It is an arithmetic number, because the mean of its divisors is an integer number (3384612).

Almost surely, 2^140492556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140492556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203076720).

140492556 is an abundant number, since it is smaller than the sum of its proper divisors (265660884).

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

140492556 is a wasteful number, since it uses less digits than its factorization.

140492556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 140492556 is about 11852.9555807824. The cubic root of 140492556 is about 519.8576484111.

The spelling of 140492556 in words is "one hundred forty million, four hundred ninety-two thousand, five hundred fifty-six".