390151836 has 48 divisors (see below), whose sum is σ = 1071010080. Its totient is φ = 122400000.

The previous prime is 390151831. The next prime is 390151843. The reversal of 390151836 is 638151093.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 390151836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390151831) 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, 104415 + ... + 108086.

It is an arithmetic number, because the mean of its divisors is an integer number (22312710).

Almost surely, 2^390151836 is an apocalyptic number.

390151836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

390151836 is an abundant number, since it is smaller than the sum of its proper divisors (680858244).

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

390151836 is a wasteful number, since it uses less digits than its factorization.

390151836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212531 (or 212523 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 390151836 is about 19752.2615414033. The cubic root of 390151836 is about 730.7091601143.

The spelling of 390151836 in words is "three hundred ninety million, one hundred fifty-one thousand, eight hundred thirty-six".