802161400 has 24 divisors (see below), whose sum is σ = 1865025720. Its totient is φ = 320864480.

The previous prime is 802161397. The next prime is 802161401. The reversal of 802161400 is 4161208.

It is a super-3 number, since 3×802161400³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802161401) 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, 2005204 + ... + 2005603.

It is an arithmetic number, because the mean of its divisors is an integer number (77709405).

Almost surely, 2^802161400 is an apocalyptic number.

It is an amenable number.

802161400 is an abundant number, since it is smaller than the sum of its proper divisors (1062864320).

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

802161400 is a wasteful number, since it uses less digits than its factorization.

802161400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010823 (or 4010814 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 802161400 is about 28322.4539897234. The cubic root of 802161400 is about 929.1530424469.

The spelling of 802161400 in words is "eight hundred two million, one hundred sixty-one thousand, four hundred".