2289942 has 12 divisors (see below), whose sum is σ = 4961580. Its totient is φ = 763308.

The previous prime is 2289929. The next prime is 2289943. The reversal of 2289942 is 2499822.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2289897 and 2289906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63592 + ... + 63627.

It is an arithmetic number, because the mean of its divisors is an integer number (413465).

2^2289942 is an apocalyptic number.

2289942 is an abundant number, since it is smaller than the sum of its proper divisors (2671638).

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

2289942 is a wasteful number, since it uses less digits than its factorization.

2289942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127227 (or 127224 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2289942 is about 1513.2554311814. The cubic root of 2289942 is about 131.8079162113.

The spelling of 2289942 in words is "two million, two hundred eighty-nine thousand, nine hundred forty-two".