402213224040 has 128 divisors (see below), whose sum is σ = 1259321333760. Its totient is φ = 102575669504.

The previous prime is 402213224027. The next prime is 402213224059. The reversal of 402213224040 is 40422312204.

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 402213224040.

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, 24299047 + ... + 24315593.

It is an arithmetic number, because the mean of its divisors is an integer number (9838447920).

Almost surely, 2^402213224040 is an apocalyptic number.

402213224040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402213224040 is an abundant number, since it is smaller than the sum of its proper divisors (857108109720).

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

402213224040 is a wasteful number, since it uses less digits than its factorization.

402213224040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25391 (or 25387 counting only the distinct ones).

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

Adding to 402213224040 its reverse (40422312204), we get a palindrome (442635536244).

The spelling of 402213224040 in words is "four hundred two billion, two hundred thirteen million, two hundred twenty-four thousand, forty".