2251942 has 24 divisors (see below), whose sum is σ = 4288680. Its totient is φ = 876960.

The previous prime is 2251927. The next prime is 2251943. The reversal of 2251942 is 2491522.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34 + ... + 2122.

It is an arithmetic number, because the mean of its divisors is an integer number (178695).

2^2251942 is an apocalyptic number.

2251942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2251942 is a deficient number, since it is larger than the sum of its proper divisors (2036738).

2251942 is a wasteful number, since it uses less digits than its factorization.

2251942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2109 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2251942 is about 1500.6471937134. The cubic root of 2251942 is about 131.0747587195.

The spelling of 2251942 in words is "two million, two hundred fifty-one thousand, nine hundred forty-two".