749239146 has 20 divisors (see below), whose sum is σ = 1678851042. Its totient is φ = 249746328.

The previous prime is 749239129. The next prime is 749239177. The reversal of 749239146 is 641932947.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 726572025 + 22667121 = 26955^2 + 4761^2 .

It is a super-2 number, since 2×749239146² = 1122718595797618632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2312305 + ... + 2312628.

Almost surely, 2^749239146 is an apocalyptic number.

749239146 is an abundant number, since it is smaller than the sum of its proper divisors (929611896).

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

749239146 is a wasteful number, since it uses less digits than its factorization.

749239146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624947 (or 4624938 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 749239146 is about 27372.2331204453. The cubic root of 749239146 is about 908.2529561363.

The spelling of 749239146 in words is "seven hundred forty-nine million, two hundred thirty-nine thousand, one hundred forty-six".