749597478 has 64 divisors (see below), whose sum is σ = 1758481920. Its totient is φ = 208599552.

The previous prime is 749597461. The next prime is 749597479. The reversal of 749597478 is 874795947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749597479) 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 31 ways as a sum of consecutive naturals, for example, 278676 + ... + 281352.

It is an arithmetic number, because the mean of its divisors is an integer number (27476280).

Almost surely, 2^749597478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749597478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879240960).

749597478 is an abundant number, since it is smaller than the sum of its proper divisors (1008884442).

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

749597478 is a wasteful number, since it uses less digits than its factorization.

749597478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861.

The product of its digits is 17781120, while the sum is 60.

The square root of 749597478 is about 27378.7778763041. Note that the first 3 decimals coincide. The cubic root of 749597478 is about 908.3977271036.

The spelling of 749597478 in words is "seven hundred forty-nine million, five hundred ninety-seven thousand, four hundred seventy-eight".