749450880 has 384 divisors, whose sum is σ = 2762323200. Its totient is φ = 194088960.

The previous prime is 749450879. The next prime is 749450881. The reversal of 749450880 is 88054947.

It is an interprime number because it is at equal distance from previous prime (749450879) and next prime (749450881).

It is a tau number, because it is divible by the number of its divisors (384).

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

It is not an unprimeable number, because it can be changed into a prime (749450881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9486681 + ... + 9486759.

It is an arithmetic number, because the mean of its divisors is an integer number (7193550).

Almost surely, 2^749450880 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 749450880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1381161600).

749450880 is an abundant number, since it is smaller than the sum of its proper divisors (2012872320).

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

749450880 is an equidigital number, since it uses as much as digits as its factorization.

749450880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 749450880 is about 27376.1005258236. The cubic root of 749450880 is about 908.3385051095.

The spelling of 749450880 in words is "seven hundred forty-nine million, four hundred fifty thousand, eight hundred eighty".