402042200 has 48 divisors (see below), whose sum is σ = 1068287280. Its totient is φ = 137842560.

The previous prime is 402042169. The next prime is 402042227. The reversal of 402042200 is 2240204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142187 + ... + 144986.

It is an arithmetic number, because the mean of its divisors is an integer number (22255985).

Almost surely, 2^402042200 is an apocalyptic number.

402042200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402042200 is an abundant number, since it is smaller than the sum of its proper divisors (666245080).

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

402042200 is a wasteful number, since it uses less digits than its factorization.

402042200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287196 (or 287187 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 402042200 is about 20050.9900004962. The cubic root of 402042200 is about 738.0580933160.

Adding to 402042200 its reverse (2240204), we get a palindrome (404282404).

The spelling of 402042200 in words is "four hundred two million, forty-two thousand, two hundred".