2251900 has 36 divisors (see below), whose sum is σ = 5586448. Its totient is φ = 771840.

The previous prime is 2251897. The next prime is 2251901. The reversal of 2251900 is 91522.

2251900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2251900² = 10142107220000, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 909 + ... + 2308.

2^2251900 is an apocalyptic number.

2251900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251900 is an abundant number, since it is smaller than the sum of its proper divisors (3334548).

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

2251900 is a wasteful number, since it uses less digits than its factorization.

2251900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238 (or 3231 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2251900 is about 1500.6331996861. The cubic root of 2251900 is about 131.0739438415.

The spelling of 2251900 in words is "two million, two hundred fifty-one thousand, nine hundred".