869160400 has 30 divisors (see below), whose sum is σ = 2088158822. Its totient is φ = 347664000.

The previous prime is 869160389. The next prime is 869160403. The reversal of 869160400 is 4061968.

It can be written as a sum of positive squares in 3 ways, for example, as 304432704 + 564727696 = 17448^2 + 23764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869160403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1086051 + ... + 1086850.

Almost surely, 2^869160400 is an apocalyptic number.

869160400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

869160400 is an abundant number, since it is smaller than the sum of its proper divisors (1218998422).

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

869160400 is a wasteful number, since it uses less digits than its factorization.

869160400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172919 (or 2172908 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 869160400 is about 29481.5264190985. The cubic root of 869160400 is about 954.3330778532. Note that the first 3 decimals are identical.

The spelling of 869160400 in words is "eight hundred sixty-nine million, one hundred sixty thousand, four hundred".