23003436 has 12 divisors (see below), whose sum is σ = 53674712. Its totient is φ = 7667808.

The previous prime is 23003423. The next prime is 23003437. The reversal of 23003436 is 63430032.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (23003437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958465 + ... + 958488.

Almost surely, 2^23003436 is an apocalyptic number.

It is an amenable number.

23003436 is an abundant number, since it is smaller than the sum of its proper divisors (30671276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23003436 is a wasteful number, since it uses less digits than its factorization.

23003436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916960 (or 1916958 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 23003436 is about 4796.1897376980. The cubic root of 23003436 is about 284.4008589133.

Adding to 23003436 its reverse (63430032), we get a palindrome (86433468).

The spelling of 23003436 in words is "twenty-three million, three thousand, four hundred thirty-six".