23234420 has 36 divisors (see below), whose sum is σ = 53636772. Its totient is φ = 8448000.

The previous prime is 23234411. The next prime is 23234437. The reversal of 23234420 is 2443232.

It can be written as a sum of positive squares in 2 ways, for example, as 13337104 + 9897316 = 3652^2 + 3146^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23234392 and 23234401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2381 + ... + 7220.

Almost surely, 2^23234420 is an apocalyptic number.

23234420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23234420 is an abundant number, since it is smaller than the sum of its proper divisors (30402352).

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

23234420 is a wasteful number, since it uses less digits than its factorization.

23234420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9632 (or 9619 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 23234420 is about 4820.2095390138. The cubic root of 23234420 is about 285.3496068736.

Adding to 23234420 its reverse (2443232), we get a palindrome (25677652).

The spelling of 23234420 in words is "twenty-three million, two hundred thirty-four thousand, four hundred twenty".