749419731 has 6 divisors (see below), whose sum is σ = 1082495180. Its totient is φ = 499613148.

The previous prime is 749419703. The next prime is 749419733. The reversal of 749419731 is 137914947.

It is not a de Polignac number, because 749419731 - 2⁶ = 749419667 is a prime.

It is a super-2 number, since 2×749419731² = 1123259866424224722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749419733) 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 5 ways as a sum of consecutive naturals, for example, 41634421 + ... + 41634438.

Almost surely, 2^749419731 is an apocalyptic number.

749419731 is a deficient number, since it is larger than the sum of its proper divisors (333075449).

749419731 is a wasteful number, since it uses less digits than its factorization.

749419731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83268865 (or 83268862 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 749419731 is about 27375.5316112765. The cubic root of 749419731 is about 908.3259206832.

It can be divided in two parts, 7494 and 19731, that added together give a square (27225 = 165²).

The spelling of 749419731 in words is "seven hundred forty-nine million, four hundred nineteen thousand, seven hundred thirty-one".