23420554 has 8 divisors (see below), whose sum is σ = 35172288. Its totient is φ = 11696460.

The previous prime is 23420533. The next prime is 23420563. The reversal of 23420554 is 45502432.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4642 + ... + 8269.

It is an arithmetic number, because the mean of its divisors is an integer number (4396536).

Almost surely, 2^23420554 is an apocalyptic number.

23420554 is a deficient number, since it is larger than the sum of its proper divisors (11751734).

23420554 is a wasteful number, since it uses less digits than its factorization.

23420554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13820.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 23420554 is about 4839.4786909336. The cubic root of 23420554 is about 286.1095721775.

Adding to 23420554 its reverse (45502432), we get a palindrome (68922986).

The spelling of 23420554 in words is "twenty-three million, four hundred twenty thousand, five hundred fifty-four".