22830431 has 4 divisors (see below), whose sum is σ = 24586632. Its totient is φ = 21074232.

The previous prime is 22830427. The next prime is 22830449. The reversal of 22830431 is 13403822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22830431 - 2² = 22830427 is a prime.

It is a super-2 number, since 2×22830431² = 1042457159291522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22830397 and 22830406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22830491) 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, 878081 + ... + 878106.

It is an arithmetic number, because the mean of its divisors is an integer number (6146658).

Almost surely, 2^22830431 is an apocalyptic number.

22830431 is a deficient number, since it is larger than the sum of its proper divisors (1756201).

22830431 is a wasteful number, since it uses less digits than its factorization.

22830431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756200.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 22830431 is about 4778.1200277934. The cubic root of 22830431 is about 283.6860868943.

The spelling of 22830431 in words is "twenty-two million, eight hundred thirty thousand, four hundred thirty-one".