503749404 has 36 divisors (see below), whose sum is σ = 1328732496. Its totient is φ = 160615488.

The previous prime is 503749387. The next prime is 503749409. The reversal of 503749404 is 404947305.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503749409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303369 + ... + 305024.

It is an arithmetic number, because the mean of its divisors is an integer number (36909236).

Almost surely, 2^503749404 is an apocalyptic number.

It is an amenable number.

503749404 is an abundant number, since it is smaller than the sum of its proper divisors (824983092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503749404 is a wasteful number, since it uses less digits than its factorization.

503749404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608426 (or 608421 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 503749404 is about 22444.3624101911. The cubic root of 503749404 is about 795.6795234405.

The spelling of 503749404 in words is "five hundred three million, seven hundred forty-nine thousand, four hundred four".