497464440 has 128 divisors (see below), whose sum is σ = 1680721920. Its totient is φ = 116697600.

The previous prime is 497464417. The next prime is 497464469. The reversal of 497464440 is 44464794.

It is a junction number, because it is equal to n+sod(n) for n = 497464392 and 497464401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34842 + ... + 46998.

It is an arithmetic number, because the mean of its divisors is an integer number (13130640).

Almost surely, 2^497464440 is an apocalyptic number.

497464440 is a gapful number since it is divisible by the number (40) 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 497464440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840360960).

497464440 is an abundant number, since it is smaller than the sum of its proper divisors (1183257480).

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

497464440 is a wasteful number, since it uses less digits than its factorization.

497464440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12213 (or 12209 counting only the distinct ones).

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

The square root of 497464440 is about 22303.9108678276. The cubic root of 497464440 is about 792.3566014796.

The spelling of 497464440 in words is "four hundred ninety-seven million, four hundred sixty-four thousand, four hundred forty".