390017941 has 2 divisors, whose sum is σ = 390017942. Its totient is φ = 390017940.

The previous prime is 390017933. The next prime is 390017951. The reversal of 390017941 is 149710093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304362916 + 85655025 = 17446^2 + 9255^2 .

It is a cyclic number.

It is not a de Polignac number, because 390017941 - 2³ = 390017933 is a prime.

It is a super-2 number, since 2×390017941² = 304227988603758962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 390017897 and 390017906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390017951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195008970 + 195008971.

It is an arithmetic number, because the mean of its divisors is an integer number (195008971).

Almost surely, 2^390017941 is an apocalyptic number.

It is an amenable number.

390017941 is a deficient number, since it is larger than the sum of its proper divisors (1).

390017941 is an equidigital number, since it uses as much as digits as its factorization.

390017941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 390017941 is about 19748.8718918322. The cubic root of 390017941 is about 730.6255606124.

The spelling of 390017941 in words is "three hundred ninety million, seventeen thousand, nine hundred forty-one".