749295009 has 48 divisors (see below), whose sum is σ = 1202529600. Its totient is φ = 459520128.

The previous prime is 749295007. The next prime is 749295031. The reversal of 749295009 is 900592947.

It is not a de Polignac number, because 749295009 - 2¹ = 749295007 is a prime.

It is a super-2 number, since 2×749295009² = 1122886021024620162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749295007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1013562 + ... + 1014300.

It is an arithmetic number, because the mean of its divisors is an integer number (25052700).

Almost surely, 2^749295009 is an apocalyptic number.

It is an amenable number.

749295009 is a deficient number, since it is larger than the sum of its proper divisors (453234591).

749295009 is a wasteful number, since it uses less digits than its factorization.

749295009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 749295009 is about 27373.2535333307. The cubic root of 749295009 is about 908.2755285793.

The spelling of 749295009 in words is "seven hundred forty-nine million, two hundred ninety-five thousand, nine".