2290438 has 8 divisors (see below), whose sum is σ = 3515688. Its totient is φ = 1118544.

The previous prime is 2290429. The next prime is 2290441. The reversal of 2290438 is 8340922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2290438² = 10492212463688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13231 + ... + 13402.

It is an arithmetic number, because the mean of its divisors is an integer number (439461).

2^2290438 is an apocalyptic number.

2290438 is a deficient number, since it is larger than the sum of its proper divisors (1225250).

2290438 is a wasteful number, since it uses less digits than its factorization.

2290438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26678.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2290438 is about 1513.4193073963. The cubic root of 2290438 is about 131.8174320283.

The spelling of 2290438 in words is "two million, two hundred ninety thousand, four hundred thirty-eight".