390125306 has 4 divisors (see below), whose sum is σ = 585187962. Its totient is φ = 195062652.

The previous prime is 390125293. The next prime is 390125311. The reversal of 390125306 is 603521093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 361342081 + 28783225 = 19009^2 + 5365^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97531325 + ... + 97531328.

Almost surely, 2^390125306 is an apocalyptic number.

390125306 is a deficient number, since it is larger than the sum of its proper divisors (195062656).

390125306 is a wasteful number, since it uses less digits than its factorization.

390125306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195062655.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 390125306 is about 19751.5899613170. The cubic root of 390125306 is about 730.6925972007.

Adding to 390125306 its reverse (603521093), we get a palindrome (993646399).

The spelling of 390125306 in words is "three hundred ninety million, one hundred twenty-five thousand, three hundred six".