23403986424 has 720 divisors, whose sum is σ = 86293884600. Its totient is φ = 5872124160.

The previous prime is 23403986399. The next prime is 23403986461. The reversal of 23403986424 is 42468930432.

23403986424 is a `hidden beast` number, since 234 + 0 + 398 + 6 + 4 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 23403986424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 396677707 + ... + 396677765.

Almost surely, 2^23403986424 is an apocalyptic number.

23403986424 is a gapful number since it is divisible by the number (24) 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 23403986424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43146942300).

23403986424 is an abundant number, since it is smaller than the sum of its proper divisors (62889898176).

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

23403986424 is a wasteful number, since it uses less digits than its factorization.

23403986424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 23403986424 in words is "twenty-three billion, four hundred three million, nine hundred eighty-six thousand, four hundred twenty-four".