2235881620 has 48 divisors (see below), whose sum is σ = 5648549760. Its totient is φ = 726240384.

The previous prime is 2235881611. The next prime is 2235881623. The reversal of 2235881620 is 261885322.

It is a self number, because there is not a number n which added to its sum of digits gives 2235881620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2235881623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417619 + ... + 422938.

It is an arithmetic number, because the mean of its divisors is an integer number (117678120).

Almost surely, 2^2235881620 is an apocalyptic number.

2235881620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2235881620 is an abundant number, since it is smaller than the sum of its proper divisors (3412668140).

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

2235881620 is a wasteful number, since it uses less digits than its factorization.

2235881620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840592 (or 840590 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 2235881620 is about 47285.1099184511. The cubic root of 2235881620 is about 1307.6241574936.

The spelling of 2235881620 in words is "two billion, two hundred thirty-five million, eight hundred eighty-one thousand, six hundred twenty".