402224132040 has 128 divisors (see below), whose sum is σ = 1285485465600. Its totient is φ = 100390199040.

The previous prime is 402224132039. The next prime is 402224132077. The reversal of 402224132040 is 40231422204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 402224132040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873496 + ... + 1251975.

It is an arithmetic number, because the mean of its divisors is an integer number (10042855200).

Almost surely, 2^402224132040 is an apocalyptic number.

402224132040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402224132040 is an abundant number, since it is smaller than the sum of its proper divisors (883261333560).

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

402224132040 is a wasteful number, since it uses less digits than its factorization.

402224132040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125587 (or 2125583 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 402224132040 its reverse (40231422204), we get a palindrome (442455554244).

The spelling of 402224132040 in words is "four hundred two billion, two hundred twenty-four million, one hundred thirty-two thousand, forty".