390543696 has 120 divisors (see below), whose sum is σ = 1158753960. Its totient is φ = 122572800.

The previous prime is 390543653. The next prime is 390543719. The reversal of 390543696 is 696345093.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11696400 + 378847296 = 3420^2 + 19464^2 .

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170076 + ... + 172356.

It is an arithmetic number, because the mean of its divisors is an integer number (9656283).

Almost surely, 2^390543696 is an apocalyptic number.

390543696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390543696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579376980).

390543696 is an abundant number, since it is smaller than the sum of its proper divisors (768210264).

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

390543696 is a wasteful number, since it uses less digits than its factorization.

390543696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2356 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The square root of 390543696 is about 19762.1784224311. The cubic root of 390543696 is about 730.9537143753.

The spelling of 390543696 in words is "three hundred ninety million, five hundred forty-three thousand, six hundred ninety-six".