402066120 has 128 divisors (see below), whose sum is σ = 1240272000. Its totient is φ = 104232960.

The previous prime is 402066083. The next prime is 402066143. The reversal of 402066120 is 21660204.

It is a happy number.

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, 771460 + ... + 771980.

It is an arithmetic number, because the mean of its divisors is an integer number (9689625).

Almost surely, 2^402066120 is an apocalyptic number.

402066120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402066120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620136000).

402066120 is an abundant number, since it is smaller than the sum of its proper divisors (838205880).

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

402066120 is a wasteful number, since it uses less digits than its factorization.

402066120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 402066120 is about 20051.5864709005. The cubic root of 402066120 is about 738.0727302533.

The spelling of 402066120 in words is "four hundred two million, sixty-six thousand, one hundred twenty".