2251400 has 24 divisors (see below), whose sum is σ = 5234970. Its totient is φ = 900480.

The previous prime is 2251397. The next prime is 2251411. The reversal of 2251400 is 41522.

It can be written as a sum of positive squares in 3 ways, for example, as 1999396 + 252004 = 1414^2 + 502^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5429 + ... + 5828.

2^2251400 is an apocalyptic number.

2251400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251400 is an abundant number, since it is smaller than the sum of its proper divisors (2983570).

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

2251400 is a wasteful number, since it uses less digits than its factorization.

2251400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11273 (or 11264 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2251400 is about 1500.4665940966. The cubic root of 2251400 is about 131.0642421344.

Adding to 2251400 its reverse (41522), we get a palindrome (2292922).

The spelling of 2251400 in words is "two million, two hundred fifty-one thousand, four hundred".