40791212 has 24 divisors (see below), whose sum is σ = 88999680. Its totient is φ = 15892560.

The previous prime is 40791209. The next prime is 40791221. The reversal of 40791212 is 21219704.

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, 65912 + ... + 66527.

It is an arithmetic number, because the mean of its divisors is an integer number (3708320).

Almost surely, 2^40791212 is an apocalyptic number.

It is an amenable number.

40791212 is an abundant number, since it is smaller than the sum of its proper divisors (48208468).

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

40791212 is a wasteful number, since it uses less digits than its factorization.

40791212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132461 (or 132459 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 40791212 is about 6386.7998246383. The cubic root of 40791212 is about 344.2354053935.

It can be divided in two parts, 407 and 91212, that added together give a palindrome (91619).

The spelling of 40791212 in words is "forty million, seven hundred ninety-one thousand, two hundred twelve".