2251902870 has 112 divisors (see below), whose sum is σ = 6945708960. Its totient is φ = 514708992.

The previous prime is 2251902859. The next prime is 2251902871. The reversal of 2251902870 is 782091522.

2251902870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251902871) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 28966 + ... + 73094.

Almost surely, 2^2251902870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2251902870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3472854480).

2251902870 is an abundant number, since it is smaller than the sum of its proper divisors (4693806090).

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

2251902870 is an equidigital number, since it uses as much as digits as its factorization.

2251902870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44161 (or 44146 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 2251902870 is about 47454.2186744235. The cubic root of 2251902870 is about 1310.7399952517.

The spelling of 2251902870 in words is "two billion, two hundred fifty-one million, nine hundred two thousand, eight hundred seventy".