1504431369 has 27 divisors (see below), whose sum is σ = 2529223437. Its totient is φ = 859209624.

The previous prime is 1504431361. The next prime is 1504431389. The reversal of 1504431369 is 9631344051.

The square root of 1504431369 is 38787.

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

1504431369 is a `hidden beast` number, since 150 + 443 + 1 + 3 + 69 = 666.

It is not a de Polignac number, because 1504431369 - 2³ = 1504431361 is a prime.

It is a super-2 number, since 2×1504431369² = 4526627488062428322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1504431361) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 813604 + ... + 815450.

Almost surely, 2^1504431369 is an apocalyptic number.

1504431369 is the 38787-th square number.

1504431369 is the 19394-th centered octagonal number.

It is an amenable number.

1504431369 is a deficient number, since it is larger than the sum of its proper divisors (1024792068).

1504431369 is an frugal number, since it uses more digits than its factorization.

1504431369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714 (or 1857 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The cubic root of 1504431369 is about 1145.8403901320.

Multiplying 1504431369 by its sum of digits (36), we get a square (54159529284 = 232722²).

The spelling of 1504431369 in words is "one billion, five hundred four million, four hundred thirty-one thousand, three hundred sixty-nine".