748815280 has 40 divisors (see below), whose sum is σ = 1778046912. Its totient is φ = 293151744.

The previous prime is 748815271. The next prime is 748815299. The reversal of 748815280 is 82518847.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×748815280² = 1121448647122956800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95817 + ... + 103336.

Almost surely, 2^748815280 is an apocalyptic number.

It is an amenable number.

748815280 is an abundant number, since it is smaller than the sum of its proper divisors (1029231632).

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

748815280 is a wasteful number, since it uses less digits than its factorization.

748815280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199213 (or 199207 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 748815280 is about 27364.4893977578. The cubic root of 748815280 is about 908.0816489419.

The spelling of 748815280 in words is "seven hundred forty-eight million, eight hundred fifteen thousand, two hundred eighty".