2290431 has 32 divisors (see below), whose sum is σ = 3790080. Its totient is φ = 1209600.

The previous prime is 2290429. The next prime is 2290441. The reversal of 2290431 is 1340922.

It is not a de Polignac number, because 2290431 - 2¹ = 2290429 is a prime.

It is a super-2 number, since 2×2290431² = 10492148331522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2290398 and 2290407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8011 + ... + 8291.

It is an arithmetic number, because the mean of its divisors is an integer number (118440).

2^2290431 is an apocalyptic number.

2290431 is a deficient number, since it is larger than the sum of its proper divisors (1499649).

2290431 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 2290431 = (1324920)₁₁.

2290431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2290431 is about 1513.4169947506. The cubic root of 2290431 is about 131.8172977421.

The spelling of 2290431 in words is "two million, two hundred ninety thousand, four hundred thirty-one".