40620412 has 72 divisors (see below), whose sum is σ = 89286624. Its totient is φ = 16063488.

The previous prime is 40620409. The next prime is 40620421. The reversal of 40620412 is 21402604.

It is a self number, because there is not a number n which added to its sum of digits gives 40620412.

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, 243153 + ... + 243319.

It is an arithmetic number, because the mean of its divisors is an integer number (1240092).

Almost surely, 2^40620412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40620412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44643312).

40620412 is an abundant number, since it is smaller than the sum of its proper divisors (48666212).

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

40620412 is a wasteful number, since it uses less digits than its factorization.

40620412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40620412 is about 6373.4144694975. The cubic root of 40620412 is about 343.7542751204.

The spelling of 40620412 in words is "forty million, six hundred twenty thousand, four hundred twelve".