860945388 has 96 divisors (see below), whose sum is σ = 2157442560. Its totient is φ = 266703360.

The previous prime is 860945369. The next prime is 860945411. The reversal of 860945388 is 883549068.

It is a super-2 number, since 2×860945388² = 1482453922236941088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 860945388.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1183881 + ... + 1184607.

It is an arithmetic number, because the mean of its divisors is an integer number (22473360).

Almost surely, 2^860945388 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 860945388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078721280).

860945388 is an abundant number, since it is smaller than the sum of its proper divisors (1296497172).

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

860945388 is a wasteful number, since it uses less digits than its factorization.

860945388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 860945388 is about 29341.8709014950. The cubic root of 860945388 is about 951.3168765832.

The spelling of 860945388 in words is "eight hundred sixty million, nine hundred forty-five thousand, three hundred eighty-eight".