23427456 has 144 divisors (see below), whose sum is σ = 71117460. Its totient is φ = 6829056.

The previous prime is 23427449. The next prime is 23427461. The reversal of 23427456 is 65472432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1233015 + ... + 1233033.

Almost surely, 2^23427456 is an apocalyptic number.

23427456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23427456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35558730).

23427456 is an abundant number, since it is smaller than the sum of its proper divisors (47690004).

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

23427456 is a wasteful number, since it uses less digits than its factorization.

23427456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 37 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 23427456 is about 4840.1917317396. The cubic root of 23427456 is about 286.1376747623.

Adding to 23427456 its reverse (65472432), we get a palindrome (88899888).

The spelling of 23427456 in words is "twenty-three million, four hundred twenty-seven thousand, four hundred fifty-six".