492056640 has 112 divisors (see below), whose sum is σ = 1735896960. Its totient is φ = 131212800.

The previous prime is 492056639. The next prime is 492056657. The reversal of 492056640 is 46650294.

492056640 is a `hidden beast` number, since 4 + 9 + 2 + 0 + 5 + 6 + 640 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 492056595 and 492056604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19836 + ... + 37115.

It is an arithmetic number, because the mean of its divisors is an integer number (15499080).

Almost surely, 2^492056640 is an apocalyptic number.

492056640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

492056640 is an abundant number, since it is smaller than the sum of its proper divisors (1243840320).

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

492056640 is a wasteful number, since it uses less digits than its factorization.

492056640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56977 (or 56961 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 492056640 is about 22182.3497402777. The cubic root of 492056640 is about 789.4749702716.

The spelling of 492056640 in words is "four hundred ninety-two million, fifty-six thousand, six hundred forty".