390355061 has 4 divisors (see below), whose sum is σ = 390460992. Its totient is φ = 390249132.

The previous prime is 390355027. The next prime is 390355067. The reversal of 390355061 is 160553093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390355061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390355067) 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, 47231 + ... + 54876.

It is an arithmetic number, because the mean of its divisors is an integer number (97615248).

Almost surely, 2^390355061 is an apocalyptic number.

It is an amenable number.

390355061 is a deficient number, since it is larger than the sum of its proper divisors (105931).

390355061 is a wasteful number, since it uses less digits than its factorization.

390355061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105930.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 390355061 is about 19757.4052193095. The cubic root of 390355061 is about 730.8360103806.

The spelling of 390355061 in words is "three hundred ninety million, three hundred fifty-five thousand, sixty-one".