749789440 has 72 divisors (see below), whose sum is σ = 1800747648. Its totient is φ = 299120640.

The previous prime is 749789401. The next prime is 749789483. The reversal of 749789440 is 44987947.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822585 + ... + 823495.

It is an arithmetic number, because the mean of its divisors is an integer number (25010384).

Almost surely, 2^749789440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749789440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900373824).

749789440 is an abundant number, since it is smaller than the sum of its proper divisors (1050958208).

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

749789440 is an equidigital number, since it uses as much as digits as its factorization.

749789440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1561 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 749789440 is about 27382.2833233461. The cubic root of 749789440 is about 908.4752633664.

The spelling of 749789440 in words is "seven hundred forty-nine million, seven hundred eighty-nine thousand, four hundred forty".