390780147 has 4 divisors (see below), whose sum is σ = 521040200. Its totient is φ = 260520096.

The previous prime is 390780127. The next prime is 390780149. The reversal of 390780147 is 741087093.

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

It is not a de Polignac number, because 390780147 - 2⁶ = 390780083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390780149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65130022 + ... + 65130027.

It is an arithmetic number, because the mean of its divisors is an integer number (130260050).

Almost surely, 2^390780147 is an apocalyptic number.

390780147 is a deficient number, since it is larger than the sum of its proper divisors (130260053).

390780147 is a wasteful number, since it uses less digits than its factorization.

390780147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130260052.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 390780147 is about 19768.1599295433. The cubic root of 390780147 is about 731.1012009603.

The spelling of 390780147 in words is "three hundred ninety million, seven hundred eighty thousand, one hundred forty-seven".