402244132220 has 24 divisors (see below), whose sum is σ = 965385917664. Its totient is φ = 137912273856.

The previous prime is 402244132201. The next prime is 402244132247. The reversal of 402244132220 is 22231442204.

It is a self number, because there is not a number n which added to its sum of digits gives 402244132220.

It is a congruent number.

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, 1436586047 + ... + 1436586326.

It is an arithmetic number, because the mean of its divisors is an integer number (40224413236).

Almost surely, 2^402244132220 is an apocalyptic number.

It is an amenable number.

402244132220 is an abundant number, since it is smaller than the sum of its proper divisors (563141785444).

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

402244132220 is a wasteful number, since it uses less digits than its factorization.

402244132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873172389 (or 2873172387 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 402244132220 its reverse (22231442204), we get a palindrome (424475574424).

The spelling of 402244132220 in words is "four hundred two billion, two hundred forty-four million, one hundred thirty-two thousand, two hundred twenty".