23454021 has 8 divisors (see below), whose sum is σ = 31325184. Its totient is φ = 15609440.

The previous prime is 23454007. The next prime is 23454023. The reversal of 23454021 is 12045432.

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

It is a cyclic number.

It is not a de Polignac number, because 23454021 - 2⁶ = 23453957 is a prime.

It is a super-2 number, since 2×23454021² = 1100182202136882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23454023) 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, 4485 + ... + 8186.

It is an arithmetic number, because the mean of its divisors is an integer number (3915648).

Almost surely, 2^23454021 is an apocalyptic number.

It is an amenable number.

23454021 is a deficient number, since it is larger than the sum of its proper divisors (7871163).

23454021 is a wasteful number, since it uses less digits than its factorization.

23454021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13291.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 23454021 is about 4842.9351637204. The cubic root of 23454021 is about 286.2457868859.

Adding to 23454021 its reverse (12045432), we get a palindrome (35499453).

The spelling of 23454021 in words is "twenty-three million, four hundred fifty-four thousand, twenty-one".