402111320 has 64 divisors (see below), whose sum is σ = 995137920. Its totient is φ = 145304064.

The previous prime is 402111299. The next prime is 402111349. The reversal of 402111320 is 23111204.

It is a junction number, because it is equal to n+sod(n) for n = 402111295 and 402111304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16214 + ... + 32666.

It is an arithmetic number, because the mean of its divisors is an integer number (15549030).

Almost surely, 2^402111320 is an apocalyptic number.

402111320 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 402111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497568960).

402111320 is an abundant number, since it is smaller than the sum of its proper divisors (593026600).

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

402111320 is a wasteful number, since it uses less digits than its factorization.

402111320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16524 (or 16520 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 402111320 is about 20052.7135320884. The cubic root of 402111320 is about 738.1003870952.

Adding to 402111320 its reverse (23111204), we get a palindrome (425222524).

The spelling of 402111320 in words is "four hundred two million, one hundred eleven thousand, three hundred twenty".