23031436 has 12 divisors (see below), whose sum is σ = 40460112. Its totient is φ = 11471408.

The previous prime is 23031409. The next prime is 23031461. The reversal of 23031436 is 63413032.

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, 9895 + ... + 11998.

It is an arithmetic number, because the mean of its divisors is an integer number (3371676).

Almost surely, 2^23031436 is an apocalyptic number.

It is an amenable number.

23031436 is a deficient number, since it is larger than the sum of its proper divisors (17428676).

23031436 is a wasteful number, since it uses less digits than its factorization.

23031436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22160 (or 22158 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 23031436 is about 4799.1078337541. The cubic root of 23031436 is about 284.5162039319.

Adding to 23031436 its reverse (63413032), we get a palindrome (86444468).

The spelling of 23031436 in words is "twenty-three million, thirty-one thousand, four hundred thirty-six".