749866572 has 240 divisors, whose sum is σ = 2498717760. Its totient is φ = 190729728.

The previous prime is 749866561. The next prime is 749866591. The reversal of 749866572 is 275668947.

749866572 is a `hidden beast` number, since 7 + 4 + 9 + 8 + 66 + 572 = 666.

It is a super-3 number, since 3×749866572³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 854598 + ... + 855474.

It is an arithmetic number, because the mean of its divisors is an integer number (10411324).

Almost surely, 2^749866572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749866572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249358880).

749866572 is an abundant number, since it is smaller than the sum of its proper divisors (1748851188).

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

749866572 is a wasteful number, since it uses less digits than its factorization.

749866572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 931 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 749866572 is about 27383.6917160561. The cubic root of 749866572 is about 908.5064143837.

The spelling of 749866572 in words is "seven hundred forty-nine million, eight hundred sixty-six thousand, five hundred seventy-two".