40297160 has 16 divisors (see below), whose sum is σ = 90668700. Its totient is φ = 16118848.

The previous prime is 40297151. The next prime is 40297171. The reversal of 40297160 is 6179204.

It can be written as a sum of positive squares in 2 ways, for example, as 39967684 + 329476 = 6322^2 + 574^2 .

It is a super-2 number, since 2×40297160² = 3247722208131200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503675 + ... + 503754.

Almost surely, 2^40297160 is an apocalyptic number.

40297160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40297160 is an abundant number, since it is smaller than the sum of its proper divisors (50371540).

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

40297160 is a wasteful number, since it uses less digits than its factorization.

40297160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007440 (or 1007436 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 40297160 is about 6348.0044108365. The cubic root of 40297160 is about 342.8399948434.

The spelling of 40297160 in words is "forty million, two hundred ninety-seven thousand, one hundred sixty".