749805438 has 16 divisors (see below), whose sum is σ = 1502121600. Its totient is φ = 249516696.

The previous prime is 749805437. The next prime is 749805457. The reversal of 749805438 is 834508947.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749805437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100720 + ... + 107907.

It is an arithmetic number, because the mean of its divisors is an integer number (93882600).

Almost surely, 2^749805438 is an apocalyptic number.

749805438 is an abundant number, since it is smaller than the sum of its proper divisors (752316162).

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

749805438 is a wasteful number, since it uses less digits than its factorization.

749805438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209231.

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 749805438 is about 27382.5754449796. The cubic root of 749805438 is about 908.4817245955.

The spelling of 749805438 in words is "seven hundred forty-nine million, eight hundred five thousand, four hundred thirty-eight".