402375222 has 32 divisors (see below), whose sum is σ = 918338400. Its totient is φ = 130499424.

The previous prime is 402375199. The next prime is 402375223. The reversal of 402375222 is 222573204.

402375222 is a `hidden beast` number, since 402 + 37 + 5 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402375223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98697 + ... + 102692.

It is an arithmetic number, because the mean of its divisors is an integer number (28698075).

Almost surely, 2^402375222 is an apocalyptic number.

402375222 is an abundant number, since it is smaller than the sum of its proper divisors (515963178).

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

402375222 is a wasteful number, since it uses less digits than its factorization.

402375222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201437 (or 201431 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 402375222 is about 20059.2926595132. The cubic root of 402375222 is about 738.2618213068.

The spelling of 402375222 in words is "four hundred two million, three hundred seventy-five thousand, two hundred twenty-two".