390697148 has 12 divisors (see below), whose sum is σ = 688711632. Its totient is φ = 193922400.

The previous prime is 390697141. The next prime is 390697157. The reversal of 390697148 is 841796093.

It is a super-2 number, since 2×390697148² = 305288522910667808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390697141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355928 + ... + 357023.

It is an arithmetic number, because the mean of its divisors is an integer number (57392636).

Almost surely, 2^390697148 is an apocalyptic number.

It is an amenable number.

390697148 is a deficient number, since it is larger than the sum of its proper divisors (298014484).

390697148 is a wasteful number, since it uses less digits than its factorization.

390697148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713092 (or 713090 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 390697148 is about 19766.0605078503. The cubic root of 390697148 is about 731.0494370161.

The spelling of 390697148 in words is "three hundred ninety million, six hundred ninety-seven thousand, one hundred forty-eight".