519794401 has 9 divisors (see below), whose sum is σ = 604844499. Its totient is φ = 445401264.

The previous prime is 519794377. The next prime is 519794447. The reversal of 519794401 is 104497915.

The square root of 519794401 is 22799.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 445421025 + 74373376 = 21105^2 + 8624^2 .

It is not a de Polignac number, because 519794401 - 2⁹ = 519793889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (519794461) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 157965 + ... + 161221.

Almost surely, 2^519794401 is an apocalyptic number.

519794401 is the 22799-th square number.

519794401 is the 11400-th centered octagonal number.

It is an amenable number.

519794401 is a deficient number, since it is larger than the sum of its proper divisors (85050098).

519794401 is an frugal number, since it uses more digits than its factorization.

519794401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6528 (or 3264 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The cubic root of 519794401 is about 804.0391560553.

The spelling of 519794401 in words is "five hundred nineteen million, seven hundred ninety-four thousand, four hundred one".