23421356 has 12 divisors (see below), whose sum is σ = 46842768. Its totient is φ = 10037712.

The previous prime is 23421353. The next prime is 23421371. The reversal of 23421356 is 65312432.

23421356 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (23421353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418211 + ... + 418266.

It is an arithmetic number, because the mean of its divisors is an integer number (3903564).

Almost surely, 2^23421356 is an apocalyptic number.

It is an amenable number.

23421356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23421356 is a wasteful number, since it uses less digits than its factorization.

23421356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836488 (or 836486 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 23421356 is about 4839.5615503886. The cubic root of 23421356 is about 286.1128379308.

Adding to 23421356 its reverse (65312432), we get a palindrome (88733788).

The spelling of 23421356 in words is "twenty-three million, four hundred twenty-one thousand, three hundred fifty-six".