40623312 has 40 divisors (see below), whose sum is σ = 105171840. Its totient is φ = 13511680.

The previous prime is 40623293. The next prime is 40623343. The reversal of 40623312 is 21332604.

It is a happy number.

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, 43264 + ... + 44192.

It is an arithmetic number, because the mean of its divisors is an integer number (2629296).

Almost surely, 2^40623312 is an apocalyptic number.

It is an amenable number.

40623312 is an abundant number, since it is smaller than the sum of its proper divisors (64548528).

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

40623312 is a wasteful number, since it uses less digits than its factorization.

40623312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 40623312 is about 6373.6419730010. The cubic root of 40623312 is about 343.7624554385.

Adding to 40623312 its reverse (21332604), we get a palindrome (61955916).

The spelling of 40623312 in words is "forty million, six hundred twenty-three thousand, three hundred twelve".