23036438 has 4 divisors (see below), whose sum is σ = 34554660. Its totient is φ = 11518218.

The previous prime is 23036437. The next prime is 23036473. The reversal of 23036438 is 83463032.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23036438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23036437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5759108 + ... + 5759111.

It is an arithmetic number, because the mean of its divisors is an integer number (8638665).

Almost surely, 2^23036438 is an apocalyptic number.

23036438 is a deficient number, since it is larger than the sum of its proper divisors (11518222).

23036438 is a wasteful number, since it uses less digits than its factorization.

23036438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11518221.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 23036438 is about 4799.6289439914. The cubic root of 23036438 is about 284.5367996521.

The spelling of 23036438 in words is "twenty-three million, thirty-six thousand, four hundred thirty-eight".