749161444 has 6 divisors (see below), whose sum is σ = 1311032534. Its totient is φ = 374580720.

The previous prime is 749161381. The next prime is 749161477. The reversal of 749161444 is 444161947.

It can be written as a sum of positive squares in only one way, i.e., 714492900 + 34668544 = 26730^2 + 5888^2 .

It is a super-2 number, since 2×749161444² = 1122485738352330272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 749161397 and 749161406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93645177 + ... + 93645184.

Almost surely, 2^749161444 is an apocalyptic number.

It is an amenable number.

749161444 is a deficient number, since it is larger than the sum of its proper divisors (561871090).

749161444 is a wasteful number, since it uses less digits than its factorization.

749161444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187290365 (or 187290363 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 749161444 is about 27370.8137255727. The cubic root of 749161444 is about 908.2215573893.

The spelling of 749161444 in words is "seven hundred forty-nine million, one hundred sixty-one thousand, four hundred forty-four".