390650461 has 4 divisors (see below), whose sum is σ = 390690432. Its totient is φ = 390610492.

The previous prime is 390650389. The next prime is 390650483. The reversal of 390650461 is 164056093.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 390650461 - 2¹¹ = 390648413 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 (390650861) 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, 5556 + ... + 28498.

It is an arithmetic number, because the mean of its divisors is an integer number (97672608).

Almost surely, 2^390650461 is an apocalyptic number.

It is an amenable number.

390650461 is a deficient number, since it is larger than the sum of its proper divisors (39971).

390650461 is a wasteful number, since it uses less digits than its factorization.

390650461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39970.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 390650461 is about 19764.8794835688. The cubic root of 390650461 is about 731.0203165368.

The spelling of 390650461 in words is "three hundred ninety million, six hundred fifty thousand, four hundred sixty-one".