23453420 has 12 divisors (see below), whose sum is σ = 49252224. Its totient is φ = 9381360.

The previous prime is 23453411. The next prime is 23453461. The reversal of 23453420 is 2435432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586316 + ... + 586355.

It is an arithmetic number, because the mean of its divisors is an integer number (4104352).

Almost surely, 2^23453420 is an apocalyptic number.

23453420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23453420 is an abundant number, since it is smaller than the sum of its proper divisors (25798804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23453420 is a wasteful number, since it uses less digits than its factorization.

23453420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172680 (or 1172678 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 23453420 is about 4842.8731141751. The cubic root of 23453420 is about 286.2433418867.

Adding to 23453420 its reverse (2435432), we get a palindrome (25888852).

The spelling of 23453420 in words is "twenty-three million, four hundred fifty-three thousand, four hundred twenty".