40164312 has 16 divisors (see below), whose sum is σ = 100410840. Its totient is φ = 13388096.

The previous prime is 40164283. The next prime is 40164317. The reversal of 40164312 is 21346104.

It is a super-2 number, since 2×40164312² = 3226343916866688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40164317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836733 + ... + 836780.

Almost surely, 2^40164312 is an apocalyptic number.

It is an amenable number.

40164312 is an abundant number, since it is smaller than the sum of its proper divisors (60246528).

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

40164312 is a wasteful number, since it uses less digits than its factorization.

40164312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673522 (or 1673518 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40164312 is about 6337.5320117535. The cubic root of 40164312 is about 342.4628322038.

The spelling of 40164312 in words is "forty million, one hundred sixty-four thousand, three hundred twelve".