749517249 has 8 divisors (see below), whose sum is σ = 1076229952. Its totient is φ = 461241360.

The previous prime is 749517239. The next prime is 749517277. The reversal of 749517249 is 942715947.

749517249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 749517249 - 2⁸ = 749516993 is a prime.

It is a super-2 number, since 2×749517249² = 1123552213097056002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749517198 and 749517207.

It is not an unprimeable number, because it can be changed into a prime (749517239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9609157 + ... + 9609234.

It is an arithmetic number, because the mean of its divisors is an integer number (134528744).

Almost surely, 2^749517249 is an apocalyptic number.

It is an amenable number.

749517249 is a deficient number, since it is larger than the sum of its proper divisors (326712703).

749517249 is a wasteful number, since it uses less digits than its factorization.

749517249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19218407.

The product of its digits is 635040, while the sum is 48.

The square root of 749517249 is about 27377.3126694349. The cubic root of 749517249 is about 908.3653175132.

The spelling of 749517249 in words is "seven hundred forty-nine million, five hundred seventeen thousand, two hundred forty-nine".