749505904 has 20 divisors (see below), whose sum is σ = 1659620464. Its totient is φ = 321216768.

The previous prime is 749505881. The next prime is 749505907. The reversal of 749505904 is 409505947.

It is a happy number.

749505904 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749505907) 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, 3345897 + ... + 3346120.

Almost surely, 2^749505904 is an apocalyptic number.

It is an amenable number.

749505904 is an abundant number, since it is smaller than the sum of its proper divisors (910114560).

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

749505904 is a wasteful number, since it uses less digits than its factorization.

749505904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6692032 (or 6692026 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 749505904 is about 27377.1054715432. The cubic root of 749505904 is about 908.3607343603.

Adding to 749505904 its sum of digits (43), we get a palindrome (749505947).

The spelling of 749505904 in words is "seven hundred forty-nine million, five hundred five thousand, nine hundred four".