749313438 has 16 divisors (see below), whose sum is σ = 1498939776. Its totient is φ = 249719000.

The previous prime is 749313427. The next prime is 749313443. The reversal of 749313438 is 834313947.

It is a super-2 number, since 2×749313438² = 1122941256734759688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 749313438.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28063 + ... + 47813.

It is an arithmetic number, because the mean of its divisors is an integer number (93683736).

Almost surely, 2^749313438 is an apocalyptic number.

749313438 is an abundant number, since it is smaller than the sum of its proper divisors (749626338).

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

749313438 is a wasteful number, since it uses less digits than its factorization.

749313438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26079.

The product of its digits is 217728, while the sum is 42.

The square root of 749313438 is about 27373.5901554765. The cubic root of 749313438 is about 908.2829748999.

The spelling of 749313438 in words is "seven hundred forty-nine million, three hundred thirteen thousand, four hundred thirty-eight".