749189008 has 20 divisors (see below), whose sum is σ = 1455395440. Its totient is φ = 373603104.

The previous prime is 749189003. The next prime is 749189017. The reversal of 749189008 is 800981947.

It is a happy number.

It is a super-2 number, since 2×749189008² = 1122568339416048128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749189003) 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, 55710 + ... + 67837.

It is an arithmetic number, because the mean of its divisors is an integer number (72769772).

Almost surely, 2^749189008 is an apocalyptic number.

It is an amenable number.

749189008 is a deficient number, since it is larger than the sum of its proper divisors (706206432).

749189008 is a wasteful number, since it uses less digits than its factorization.

749189008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123934 (or 123928 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 749189008 is about 27371.3172499973. The cubic root of 749189008 is about 908.2326960263.

The spelling of 749189008 in words is "seven hundred forty-nine million, one hundred eighty-nine thousand, eight".