402200000442 has 12 divisors (see below), whose sum is σ = 871433334330. Its totient is φ = 134066666808.

The previous prime is 402200000393. The next prime is 402200000497. The reversal of 402200000442 is 244000002204.

402200000442 is a `hidden beast` number, since 4 + 0 + 220 + 0 + 0 + 0 + 0 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 233715200481 + 168484799961 = 483441^2 + 410469^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22344444469 = 402200000442 / (4 + 0 + 2 + 2 + 0 + 0 + 0 + 0 + 0 + 4 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11172222217 + ... + 11172222252.

Almost surely, 2^402200000442 is an apocalyptic number.

402200000442 is an abundant number, since it is smaller than the sum of its proper divisors (469233333888).

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

402200000442 is a wasteful number, since it uses less digits than its factorization.

402200000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22344444477 (or 22344444474 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 402200000442 its reverse (244000002204), we get a palindrome (646200002646).

The spelling of 402200000442 in words is "four hundred two billion, two hundred million, four hundred forty-two", and thus it is an aban number.