749493459 has 32 divisors (see below), whose sum is σ = 1304486400. Its totient is φ = 419294880.

The previous prime is 749493457. The next prime is 749493473. The reversal of 749493459 is 954394947.

749493459 = 261² + 262² + ... + 1313².

It is not a de Polignac number, because 749493459 - 2¹ = 749493457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749493457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93199 + ... + 100920.

It is an arithmetic number, because the mean of its divisors is an integer number (40765200).

Almost surely, 2^749493459 is an apocalyptic number.

749493459 is a deficient number, since it is larger than the sum of its proper divisors (554992941).

749493459 is a wasteful number, since it uses less digits than its factorization.

749493459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194152 (or 194146 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 749493459 is about 27376.8781821449. The cubic root of 749493459 is about 908.3557067762.

The spelling of 749493459 in words is "seven hundred forty-nine million, four hundred ninety-three thousand, four hundred fifty-nine".