390712452 has 144 divisors (see below), whose sum is σ = 1046771712. Its totient is φ = 113218560.

The previous prime is 390712451. The next prime is 390712501. The reversal of 390712452 is 254217093.

It is not an unprimeable number, because it can be changed into a prime (390712451) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3076413 + ... + 3076539.

It is an arithmetic number, because the mean of its divisors is an integer number (7269248).

Almost surely, 2^390712452 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 390712452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523385856).

390712452 is an abundant number, since it is smaller than the sum of its proper divisors (656059260).

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

390712452 is a wasteful number, since it uses less digits than its factorization.

390712452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 390712452 is about 19766.4476322884. The cubic root of 390712452 is about 731.0589822053.

The spelling of 390712452 in words is "three hundred ninety million, seven hundred twelve thousand, four hundred fifty-two".