260023431 has 4 divisors (see below), whose sum is σ = 346697912. Its totient is φ = 173348952.

The previous prime is 260023391. The next prime is 260023433. The reversal of 260023431 is 134320062.

It is a happy number.

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

It is not a de Polignac number, because 260023431 - 2¹⁴ = 260007047 is a prime.

It is a super-2 number, since 2×260023431² = 135224369338023522, 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 = 260023398 and 260023407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260023433) 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, 43337236 + ... + 43337241.

It is an arithmetic number, because the mean of its divisors is an integer number (86674478).

Almost surely, 2^260023431 is an apocalyptic number.

260023431 is a deficient number, since it is larger than the sum of its proper divisors (86674481).

260023431 is an equidigital number, since it uses as much as digits as its factorization.

260023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86674480.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 260023431 is about 16125.2420446950. The cubic root of 260023431 is about 638.2696021893.

Adding to 260023431 its reverse (134320062), we get a palindrome (394343493).

The spelling of 260023431 in words is "two hundred sixty million, twenty-three thousand, four hundred thirty-one".