40212021204 has 72 divisors (see below), whose sum is σ = 112305735360. Its totient is φ = 12067030272.

The previous prime is 40212021167. The next prime is 40212021229.

40212021204 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1414314 + ... + 1442465.

It is an arithmetic number, because the mean of its divisors is an integer number (1559801880).

Almost surely, 2^40212021204 is an apocalyptic number.

It is an amenable number.

40212021204 is an abundant number, since it is smaller than the sum of its proper divisors (72093714156).

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

40212021204 is a wasteful number, since it uses less digits than its factorization.

40212021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856829 (or 2856824 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

It can be divided in two parts, 402120 and 21204, that added together give a palindrome (423324).

The spelling of 40212021204 in words is "forty billion, two hundred twelve million, twenty-one thousand, two hundred four".