402161200 has 60 divisors (see below), whose sum is σ = 1104227440. Its totient is φ = 137882880.

The previous prime is 402161189. The next prime is 402161209. The reversal of 402161200 is 2161204.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (402161209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69015 + ... + 74614.

Almost surely, 2^402161200 is an apocalyptic number.

402161200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402161200 is an abundant number, since it is smaller than the sum of its proper divisors (702066240).

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

402161200 is a wasteful number, since it uses less digits than its factorization.

402161200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143654 (or 143643 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 402161200 is about 20053.9572154725. The cubic root of 402161200 is about 738.1309051162.

The spelling of 402161200 in words is "four hundred two million, one hundred sixty-one thousand, two hundred".