23189402 has 8 divisors (see below), whose sum is σ = 35142996. Its totient is φ = 11475072.

The previous prime is 23189401. The next prime is 23189431. The reversal of 23189402 is 20498132.

It can be written as a sum of positive squares in 2 ways, for example, as 23145721 + 43681 = 4811^2 + 209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23189401) 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, 59573 + ... + 59960.

Almost surely, 2^23189402 is an apocalyptic number.

23189402 is a deficient number, since it is larger than the sum of its proper divisors (11953594).

23189402 is a wasteful number, since it uses less digits than its factorization.

23189402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119632.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 23189402 is about 4815.5375608544. The cubic root of 23189402 is about 285.1651940631.

The spelling of 23189402 in words is "twenty-three million, one hundred eighty-nine thousand, four hundred two".