23420316 has 12 divisors (see below), whose sum is σ = 54647432. Its totient is φ = 7806768.

The previous prime is 23420281. The next prime is 23420323. The reversal of 23420316 is 61302432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×23420316² = 1097022403079712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23420292 and 23420301.

It is a congruent number.

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, 975835 + ... + 975858.

Almost surely, 2^23420316 is an apocalyptic number.

It is an amenable number.

23420316 is an abundant number, since it is smaller than the sum of its proper divisors (31227116).

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

23420316 is a wasteful number, since it uses less digits than its factorization.

23420316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951700 (or 1951698 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23420316 is about 4839.4541014457. The cubic root of 23420316 is about 286.1086030243.

Adding to 23420316 its reverse (61302432), we get a palindrome (84722748).

The spelling of 23420316 in words is "twenty-three million, four hundred twenty thousand, three hundred sixteen".