40386612 has 48 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 11465952.

The previous prime is 40386607. The next prime is 40386613. The reversal of 40386612 is 21668304.

It is a self number, because there is not a number n which added to its sum of digits gives 40386612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40386613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12589 + ... + 15467.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 2^40386612 is an apocalyptic number.

40386612 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40386612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54190080).

40386612 is an abundant number, since it is smaller than the sum of its proper divisors (67993548).

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

40386612 is a wasteful number, since it uses less digits than its factorization.

40386612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060 (or 3058 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 40386612 is about 6355.0461839392. The cubic root of 40386612 is about 343.0934871408.

The spelling of 40386612 in words is "forty million, three hundred eighty-six thousand, six hundred twelve".