297472440 has 32 divisors (see below), whose sum is σ = 892417680. Its totient is φ = 79325952.

The previous prime is 297472421. The next prime is 297472457. The reversal of 297472440 is 44274792.

297472440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239349 + ... + 1239588.

Almost surely, 2^297472440 is an apocalyptic number.

297472440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297472440 is an abundant number, since it is smaller than the sum of its proper divisors (594945240).

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

297472440 is a wasteful number, since it uses less digits than its factorization.

297472440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478951 (or 2478947 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 297472440 is about 17247.3893676695. The cubic root of 297472440 is about 667.5476098404.

The spelling of 297472440 in words is "two hundred ninety-seven million, four hundred seventy-two thousand, four hundred forty".