749172750 has 32 divisors (see below), whose sum is σ = 1869937056. Its totient is φ = 199779200.

The previous prime is 749172731. The next prime is 749172763. The reversal of 749172750 is 57271947.

749172750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×749172750² = 1122519618685125000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498699 + ... + 500198.

It is an arithmetic number, because the mean of its divisors is an integer number (58435533).

Almost surely, 2^749172750 is an apocalyptic number.

749172750 is an abundant number, since it is smaller than the sum of its proper divisors (1120764306).

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

749172750 is a wasteful number, since it uses less digits than its factorization.

749172750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998917 (or 998907 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 749172750 is about 27371.0202586604. The cubic root of 749172750 is about 908.2261261870.

The spelling of 749172750 in words is "seven hundred forty-nine million, one hundred seventy-two thousand, seven hundred fifty".