749785320 has 48 divisors (see below), whose sum is σ = 2436803460. Its totient is φ = 199942656.

The previous prime is 749785319. The next prime is 749785331. The reversal of 749785320 is 23587947.

749785320 is a `hidden beast` number, since 7 + 49 + 78 + 532 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 748897956 + 887364 = 27366^2 + 942^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1041009 + ... + 1041728.

Almost surely, 2^749785320 is an apocalyptic number.

It is an amenable number.

749785320 is an abundant number, since it is smaller than the sum of its proper divisors (1687018140).

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

749785320 is a wasteful number, since it uses less digits than its factorization.

749785320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082754 (or 2082747 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 749785320 is about 27382.2080921170. The cubic root of 749785320 is about 908.4735993771.

The spelling of 749785320 in words is "seven hundred forty-nine million, seven hundred eighty-five thousand, three hundred twenty".