396318140 has 12 divisors (see below), whose sum is σ = 832268136. Its totient is φ = 158527248.

The previous prime is 396318133. The next prime is 396318151. The reversal of 396318140 is 41813693.

It is a self number, because there is not a number n which added to its sum of digits gives 396318140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9907934 + ... + 9907973.

It is an arithmetic number, because the mean of its divisors is an integer number (69355678).

Almost surely, 2^396318140 is an apocalyptic number.

It is an amenable number.

396318140 is an abundant number, since it is smaller than the sum of its proper divisors (435949996).

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

396318140 is a wasteful number, since it uses less digits than its factorization.

396318140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19815916 (or 19815914 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 396318140 is about 19907.7407055648. The cubic root of 396318140 is about 734.5386464098.

The spelling of 396318140 in words is "three hundred ninety-six million, three hundred eighteen thousand, one hundred forty".