749742192 has 60 divisors (see below), whose sum is σ = 2165934784. Its totient is φ = 241850880.

The previous prime is 749742181. The next prime is 749742209. The reversal of 749742192 is 291247947.

It is a happy number.

It is a super-2 number, since 2×749742192² = 1124226708929929728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79513 + ... + 88440.

Almost surely, 2^749742192 is an apocalyptic number.

749742192 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

749742192 is an abundant number, since it is smaller than the sum of its proper divisors (1416192592).

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

749742192 is a wasteful number, since it uses less digits than its factorization.

749742192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167998 (or 167989 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 749742192 is about 27381.4205621257. The cubic root of 749742192 is about 908.4561804352.

The spelling of 749742192 in words is "seven hundred forty-nine million, seven hundred forty-two thousand, one hundred ninety-two".