885721380 has 48 divisors (see below), whose sum is σ = 2481327744. Its totient is φ = 236067840.

The previous prime is 885721363. The next prime is 885721387. The reversal of 885721380 is 83127588.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (885721387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194004 + ... + 198516.

It is an arithmetic number, because the mean of its divisors is an integer number (51694328).

Almost surely, 2^885721380 is an apocalyptic number.

It is an amenable number.

885721380 is an abundant number, since it is smaller than the sum of its proper divisors (1595606364).

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

885721380 is a wasteful number, since it uses less digits than its factorization.

885721380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7796 (or 7794 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 885721380 is about 29761.0715532892. The cubic root of 885721380 is about 960.3562696766.

The spelling of 885721380 in words is "eight hundred eighty-five million, seven hundred twenty-one thousand, three hundred eighty".