23572420 has 12 divisors (see below), whose sum is σ = 49502124. Its totient is φ = 9428960.

The previous prime is 23572403. The next prime is 23572433. The reversal of 23572420 is 2427532.

It can be written as a sum of positive squares in 2 ways, for example, as 14318656 + 9253764 = 3784^2 + 3042^2 .

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, 589291 + ... + 589330.

It is an arithmetic number, because the mean of its divisors is an integer number (4125177).

Almost surely, 2^23572420 is an apocalyptic number.

23572420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23572420 is an abundant number, since it is smaller than the sum of its proper divisors (25929704).

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

23572420 is a wasteful number, since it uses less digits than its factorization.

23572420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178630 (or 1178628 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 23572420 is about 4855.1436641978. The cubic root of 23572420 is about 286.7266475055.

Adding to 23572420 its reverse (2427532), we get a palindrome (25999952).

The spelling of 23572420 in words is "twenty-three million, five hundred seventy-two thousand, four hundred twenty".