390578152 has 8 divisors (see below), whose sum is σ = 732334050. Its totient is φ = 195289072.

The previous prime is 390578137. The next prime is 390578161. The reversal of 390578152 is 251875093.

It can be written as a sum of positive squares in only one way, i.e., 387066276 + 3511876 = 19674^2 + 1874^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24411127 + ... + 24411142.

Almost surely, 2^390578152 is an apocalyptic number.

It is an amenable number.

390578152 is a deficient number, since it is larger than the sum of its proper divisors (341755898).

390578152 is a wasteful number, since it uses less digits than its factorization.

390578152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48822275 (or 48822271 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 390578152 is about 19763.0501694450. The cubic root of 390578152 is about 730.9752100498.

The spelling of 390578152 in words is "three hundred ninety million, five hundred seventy-eight thousand, one hundred fifty-two".