23232420 has 60 divisors (see below), whose sum is σ = 72886044. Its totient is φ = 6194880.

The previous prime is 23232409. The next prime is 23232431. The reversal of 23232420 is 2423232.

It is an interprime number because it is at equal distance from previous prime (23232409) and next prime (23232431).

It can be written as a sum of positive squares in 2 ways, for example, as 3305124 + 19927296 = 1818^2 + 4464^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23232393 and 23232402.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5551 + ... + 8790.

Almost surely, 2^23232420 is an apocalyptic number.

23232420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23232420 is an abundant number, since it is smaller than the sum of its proper divisors (49653624).

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

23232420 is a wasteful number, since it uses less digits than its factorization.

23232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14362 (or 14351 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23232420 is about 4820.0020746884. The cubic root of 23232420 is about 285.3414190845.

Adding to 23232420 its reverse (2423232), we get a palindrome (25655652).

The spelling of 23232420 in words is "twenty-three million, two hundred thirty-two thousand, four hundred twenty".