40395156 has 24 divisors (see below), whose sum is σ = 94358880. Its totient is φ = 13450272.

The previous prime is 40395151. The next prime is 40395181. The reversal of 40395156 is 65159304.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40395151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18490 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (3931620).

Almost surely, 2^40395156 is an apocalyptic number.

It is an amenable number.

40395156 is an abundant number, since it is smaller than the sum of its proper divisors (53963724).

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

40395156 is a wasteful number, since it uses less digits than its factorization.

40395156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703 (or 3701 counting only the distinct ones).

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

The square root of 40395156 is about 6355.7183700979. The cubic root of 40395156 is about 343.1176798449.

It can be divided in two parts, 403 and 95156, that added together give a palindrome (95559).

The spelling of 40395156 in words is "forty million, three hundred ninety-five thousand, one hundred fifty-six".