749684156 has 48 divisors (see below), whose sum is σ = 1499230656. Its totient is φ = 324946944.

The previous prime is 749684153. The next prime is 749684171. The reversal of 749684156 is 651486947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749684153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774785 + ... + 775751.

It is an arithmetic number, because the mean of its divisors is an integer number (31233972).

Almost surely, 2^749684156 is an apocalyptic number.

It is an amenable number.

749684156 is a deficient number, since it is larger than the sum of its proper divisors (749546500).

749684156 is a wasteful number, since it uses less digits than its factorization.

749684156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1876 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 749684156 is about 27380.3607719110. The cubic root of 749684156 is about 908.4327392560.

The spelling of 749684156 in words is "seven hundred forty-nine million, six hundred eighty-four thousand, one hundred fifty-six".