390746452 has 12 divisors (see below), whose sum is σ = 690197760. Its totient is φ = 193547096.

The previous prime is 390746417. The next prime is 390746453. The reversal of 390746452 is 254647093.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390746453) 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 3 ways as a sum of consecutive naturals, for example, 456052 + ... + 456907.

It is an arithmetic number, because the mean of its divisors is an integer number (57516480).

Almost surely, 2^390746452 is an apocalyptic number.

It is an amenable number.

390746452 is a deficient number, since it is larger than the sum of its proper divisors (299451308).

390746452 is a wasteful number, since it uses less digits than its factorization.

390746452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913070 (or 913068 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 390746452 is about 19767.3076568358. The cubic root of 390746452 is about 731.0801873006.

The spelling of 390746452 in words is "three hundred ninety million, seven hundred forty-six thousand, four hundred fifty-two".