40132398 has 16 divisors (see below), whose sum is σ = 80352720. Its totient is φ = 13362816.

The previous prime is 40132387. The next prime is 40132403. The reversal of 40132398 is 89323104.

It is a super-2 number, since 2×40132398² = 3221218738460808, which contains 22 as substring.

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, 3286 + ... + 9542.

It is an arithmetic number, because the mean of its divisors is an integer number (5022045).

Almost surely, 2^40132398 is an apocalyptic number.

40132398 is an abundant number, since it is smaller than the sum of its proper divisors (40220322).

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

40132398 is a wasteful number, since it uses less digits than its factorization.

40132398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 40132398 is about 6335.0136542868. The cubic root of 40132398 is about 342.3721027781.

The spelling of 40132398 in words is "forty million, one hundred thirty-two thousand, three hundred ninety-eight".