402200120 has 32 divisors (see below), whose sum is σ = 1034229600. Its totient is φ = 137897088.

The previous prime is 402200111. The next prime is 402200131. The reversal of 402200120 is 21002204.

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, 717935 + ... + 718494.

It is an arithmetic number, because the mean of its divisors is an integer number (32319675).

Almost surely, 2^402200120 is an apocalyptic number.

402200120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402200120 is an abundant number, since it is smaller than the sum of its proper divisors (632029480).

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

402200120 is a wasteful number, since it uses less digits than its factorization.

402200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436447 (or 1436443 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 402200120 is about 20054.9275740403. The cubic root of 402200120 is about 738.1547157408.

Adding to 402200120 its reverse (21002204), we get a palindrome (423202324).

The spelling of 402200120 in words is "four hundred two million, two hundred thousand, one hundred twenty".