40155396 has 24 divisors (see below), whose sum is σ = 94004064. Its totient is φ = 13341120.

The previous prime is 40155389. The next prime is 40155403. The reversal of 40155396 is 69355104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40155389) and next prime (40155403).

It is a super-2 number, since 2×40155396² = 3224911655833632, which contains 22 as substring.

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, 1590 + ... + 9101.

It is an arithmetic number, because the mean of its divisors is an integer number (3916836).

Almost surely, 2^40155396 is an apocalyptic number.

It is an amenable number.

40155396 is an abundant number, since it is smaller than the sum of its proper divisors (53848668).

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

40155396 is a wasteful number, since it uses less digits than its factorization.

40155396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011 (or 11009 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 40155396 is about 6336.8285443114. The cubic root of 40155396 is about 342.4374894353.

The spelling of 40155396 in words is "forty million, one hundred fifty-five thousand, three hundred ninety-six".