497446440 has 64 divisors (see below), whose sum is σ = 1528752960. Its totient is φ = 129415680.

The previous prime is 497446409. The next prime is 497446447. The reversal of 497446440 is 44644794.

It is a junction number, because it is equal to n+sod(n) for n = 497446392 and 497446401.

It is not an unprimeable number, because it can be changed into a prime (497446447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45634 + ... + 55473.

It is an arithmetic number, because the mean of its divisors is an integer number (23886765).

Almost surely, 2^497446440 is an apocalyptic number.

497446440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497446440 is an abundant number, since it is smaller than the sum of its proper divisors (1031306520).

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

497446440 is a wasteful number, since it uses less digits than its factorization.

497446440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101162 (or 101158 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 497446440 is about 22303.5073475003. The cubic root of 497446440 is about 792.3470446217.

The spelling of 497446440 in words is "four hundred ninety-seven million, four hundred forty-six thousand, four hundred forty".