390069401 has 4 divisors (see below), whose sum is σ = 403520100. Its totient is φ = 376618704.

The previous prime is 390069389. The next prime is 390069409. The reversal of 390069401 is 104960093.

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

It can be written as a sum of positive squares in 2 ways, for example, as 282408025 + 107661376 = 16805^2 + 10376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390069401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390069409) 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, 6725306 + ... + 6725363.

It is an arithmetic number, because the mean of its divisors is an integer number (100880025).

Almost surely, 2^390069401 is an apocalyptic number.

It is an amenable number.

390069401 is a deficient number, since it is larger than the sum of its proper divisors (13450699).

390069401 is a wasteful number, since it uses less digits than its factorization.

390069401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13450698.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 390069401 is about 19750.1747080880. The cubic root of 390069401 is about 730.6576927564.

The spelling of 390069401 in words is "three hundred ninety million, sixty-nine thousand, four hundred one".