402205120 has 28 divisors (see below), whose sum is σ = 957751704. Its totient is φ = 160881920.

The previous prime is 402205103. The next prime is 402205127. The reversal of 402205120 is 21502204.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 402205094 and 402205103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402205127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628126 + ... + 628765.

It is an arithmetic number, because the mean of its divisors is an integer number (34205418).

Almost surely, 2^402205120 is an apocalyptic number.

402205120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402205120 is an abundant number, since it is smaller than the sum of its proper divisors (555546584).

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

402205120 is a wasteful number, since it uses less digits than its factorization.

402205120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256908 (or 1256898 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 402205120 is about 20055.0522312957. The cubic root of 402205120 is about 738.1577745484.

Adding to 402205120 its reverse (21502204), we get a palindrome (423707324).

The spelling of 402205120 in words is "four hundred two million, two hundred five thousand, one hundred twenty".