390738 has 8 divisors (see below), whose sum is σ = 781488. Its totient is φ = 130244.

The previous prime is 390737. The next prime is 390739. The reversal of 390738 is 837093.

It is an interprime number because it is at equal distance from previous prime (390737) and next prime (390739).

It is a sphenic number, since it is the product of 3 distinct primes.

390738 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (390737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32556 + ... + 32567.

It is an arithmetic number, because the mean of its divisors is an integer number (97686).

2³⁹⁰⁷³⁸ is an apocalyptic number.

390738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

390738 is a wasteful number, since it uses less digits than its factorization.

390738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65128.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 390738 is about 625.0903934632. The cubic root of 390738 is about 73.1074916078.

It can be divided in two parts, 390 and 738, that added together give a triangular number (1128 = T₄₇).

The spelling of 390738 in words is "three hundred ninety thousand, seven hundred thirty-eight".