23420001 has 16 divisors (see below), whose sum is σ = 34987968. Its totient is φ = 13809600.

The previous prime is 23419997. The next prime is 23420017. The reversal of 23420001 is 10002432.

It is not a de Polignac number, because 23420001 - 2² = 23419997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23420021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8370 + ... + 10811.

It is an arithmetic number, because the mean of its divisors is an integer number (2186748).

Almost surely, 2^23420001 is an apocalyptic number.

It is an amenable number.

23420001 is a deficient number, since it is larger than the sum of its proper divisors (11567967).

23420001 is a wasteful number, since it uses less digits than its factorization.

23420001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19232.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 23420001 is about 4839.4215563433. The cubic root of 23420001 is about 286.1073203116.

Adding to 23420001 its reverse (10002432), we get a palindrome (33422433).

Subtracting from 23420001 its reverse (10002432), we obtain a square (13417569 = 3663²).

It can be divided in two parts, 23 and 420001, that added together give a palindrome (420024).

The spelling of 23420001 in words is "twenty-three million, four hundred twenty thousand, one".