390038336 has 56 divisors (see below), whose sum is σ = 797454336. Its totient is φ = 189181440.

The previous prime is 390038333. The next prime is 390038359. The reversal of 390038336 is 633830093.

It is a junction number, because it is equal to n+sod(n) for n = 390038296 and 390038305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390038333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381506 + ... + 382526.

It is an arithmetic number, because the mean of its divisors is an integer number (14240256).

Almost surely, 2^390038336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390038336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398727168).

390038336 is an abundant number, since it is smaller than the sum of its proper divisors (407416000).

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

390038336 is a wasteful number, since it uses less digits than its factorization.

390038336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 390038336 is about 19749.3882436900. The cubic root of 390038336 is about 730.6382957946.

The spelling of 390038336 in words is "three hundred ninety million, thirty-eight thousand, three hundred thirty-six".