23031434 has 16 divisors (see below), whose sum is σ = 35232840. Its totient is φ = 11289600.

The previous prime is 23031409. The next prime is 23031461. The reversal of 23031434 is 43413032.

It can be written as a sum of positive squares in 4 ways, for example, as 17247409 + 5784025 = 4153^2 + 2405^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22322 + ... + 23330.

Almost surely, 2^23031434 is an apocalyptic number.

23031434 is a deficient number, since it is larger than the sum of its proper divisors (12201406).

23031434 is a wasteful number, since it uses less digits than its factorization.

23031434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 23031434 is about 4799.1076253820. The cubic root of 23031434 is about 284.5161956963.

Adding to 23031434 its reverse (43413032), we get a palindrome (66444466).

The spelling of 23031434 in words is "twenty-three million, thirty-one thousand, four hundred thirty-four".