749425491 has 24 divisors (see below), whose sum is σ = 1160109600. Its totient is φ = 464973696.

The previous prime is 749425489. The next prime is 749425513. The reversal of 749425491 is 194524947.

749425491 is a `hidden beast` number, since 74 + 94 + 2 + 5 + 491 = 666.

It is not a de Polignac number, because 749425491 - 2¹ = 749425489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749425421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41266 + ... + 56583.

It is an arithmetic number, because the mean of its divisors is an integer number (48337900).

Almost surely, 2^749425491 is an apocalyptic number.

749425491 is a deficient number, since it is larger than the sum of its proper divisors (410684109).

749425491 is a wasteful number, since it uses less digits than its factorization.

749425491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97915 (or 97912 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 749425491 is about 27375.6368145108. The cubic root of 749425491 is about 908.3282477920.

The spelling of 749425491 in words is "seven hundred forty-nine million, four hundred twenty-five thousand, four hundred ninety-one".