23642403 has 8 divisors (see below), whose sum is σ = 33182400. Its totient is φ = 14932008.

The previous prime is 23642351. The next prime is 23642419. The reversal of 23642403 is 30424632.

It is a happy number.

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

It is not a de Polignac number, because 23642403 - 2¹³ = 23634211 is a prime.

It is a super-2 number, since 2×23642403² = 1117926439228818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23642603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207333 + ... + 207446.

It is an arithmetic number, because the mean of its divisors is an integer number (4147800).

Almost surely, 2^23642403 is an apocalyptic number.

23642403 is a deficient number, since it is larger than the sum of its proper divisors (9539997).

23642403 is a wasteful number, since it uses less digits than its factorization.

23642403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414801.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 23642403 is about 4862.3454217075. The cubic root of 23642403 is about 287.0101167182.

The spelling of 23642403 in words is "twenty-three million, six hundred forty-two thousand, four hundred three".