402222002240 has 56 divisors (see below), whose sum is σ = 958713774720. Its totient is φ = 160733818368.

The previous prime is 402222002179. The next prime is 402222002261. The reversal of 402222002240 is 42200222204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272402 + ... + 937361.

Almost surely, 2^402222002240 is an apocalyptic number.

402222002240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402222002240 is an abundant number, since it is smaller than the sum of its proper divisors (556491772480).

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

402222002240 is a wasteful number, since it uses less digits than its factorization.

402222002240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210819 (or 1210809 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 402222002240 its reverse (42200222204), we get a palindrome (444422224444).

The spelling of 402222002240 in words is "four hundred two billion, two hundred twenty-two million, two thousand, two hundred forty".