2251972 has 12 divisors (see below), whose sum is σ = 3958416. Its totient is φ = 1121000.

The previous prime is 2251957. The next prime is 2251979. The reversal of 2251972 is 2791522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251972.

It is not an unprimeable number, because it can be changed into a prime (2251979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (329868).

2^2251972 is an apocalyptic number.

It is an amenable number.

2251972 is a deficient number, since it is larger than the sum of its proper divisors (1706444).

2251972 is a wasteful number, since it uses less digits than its factorization.

2251972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2496 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 2251972 is about 1500.6571893674. The cubic root of 2251972 is about 131.0753407691.

It can be divided in two parts, 2251 and 972, that added together give a palindrome (3223).

The spelling of 2251972 in words is "two million, two hundred fifty-one thousand, nine hundred seventy-two".