23290481 has 6 divisors (see below), whose sum is σ = 23445846. Its totient is φ = 23136000.

The previous prime is 23290469. The next prime is 23290483. The reversal of 23290481 is 18409232.

It can be written as a sum of positive squares in 3 ways, for example, as 16483600 + 6806881 = 4060^2 + 2609^2 .

It is not a de Polignac number, because 23290481 - 2¹⁰ = 23289457 is a prime.

It is a super-2 number, since 2×23290481² = 1084893010422722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23290483) 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, 57881 + ... + 58281.

It is an arithmetic number, because the mean of its divisors is an integer number (3907641).

Almost surely, 2^23290481 is an apocalyptic number.

It is an amenable number.

23290481 is a deficient number, since it is larger than the sum of its proper divisors (155365).

23290481 is an frugal number, since it uses more digits than its factorization.

23290481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 23290481 is about 4826.0212390747. The cubic root of 23290481 is about 285.5789237730.

The spelling of 23290481 in words is "twenty-three million, two hundred ninety thousand, four hundred eighty-one".