40233156 has 12 divisors (see below), whose sum is σ = 93877392. Its totient is φ = 13411048.

The previous prime is 40233119. The next prime is 40233157. The reversal of 40233156 is 65133204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40233157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676370 + ... + 1676393.

It is an arithmetic number, because the mean of its divisors is an integer number (7823116).

Almost surely, 2^40233156 is an apocalyptic number.

It is an amenable number.

40233156 is an abundant number, since it is smaller than the sum of its proper divisors (53644236).

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

40233156 is a wasteful number, since it uses less digits than its factorization.

40233156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352770 (or 3352768 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 40233156 is about 6342.9611381436. The cubic root of 40233156 is about 342.6583876804.

The spelling of 40233156 in words is "forty million, two hundred thirty-three thousand, one hundred fifty-six".