1504431381 has 8 divisors (see below), whose sum is σ = 2111482720. Its totient is φ = 950167152.

The previous prime is 1504431361. The next prime is 1504431389. The reversal of 1504431381 is 1831344051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1504431381 - 2⁶ = 1504431317 is a prime.

It is a super-2 number, since 2×1504431381² = 4526627560275134322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1504431389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13196710 + ... + 13196823.

It is an arithmetic number, because the mean of its divisors is an integer number (263935340).

Almost surely, 2^1504431381 is an apocalyptic number.

It is an amenable number.

1504431381 is a deficient number, since it is larger than the sum of its proper divisors (607051339).

1504431381 is a wasteful number, since it uses less digits than its factorization.

1504431381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26393555.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1504431381 is about 38787.0001546910. Note that the first 3 decimals coincide. The cubic root of 1504431381 is about 1145.8403931786.

The spelling of 1504431381 in words is "one billion, five hundred four million, four hundred thirty-one thousand, three hundred eighty-one".