390338970 has 32 divisors (see below), whose sum is σ = 1070644608. Its totient is φ = 89220288.

The previous prime is 390338941. The next prime is 390338999. The reversal of 390338970 is 79833093.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (390338941) and next prime (390338999).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929169 + ... + 929588.

It is an arithmetic number, because the mean of its divisors is an integer number (33457644).

Almost surely, 2^390338970 is an apocalyptic number.

390338970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390338970 is an abundant number, since it is smaller than the sum of its proper divisors (680305638).

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

390338970 is a wasteful number, since it uses less digits than its factorization.

390338970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858774.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 390338970 is about 19756.9980007085. The cubic root of 390338970 is about 730.8259682036.

The spelling of 390338970 in words is "three hundred ninety million, three hundred thirty-eight thousand, nine hundred seventy".