23486436 has 72 divisors (see below), whose sum is σ = 62599264. Its totient is φ = 7698240.

The previous prime is 23486387. The next prime is 23486443. The reversal of 23486436 is 63468432.

It is a happy number.

23486436 is a `hidden beast` number, since 2 + 3 + 4 + 8 + 643 + 6 = 666.

It is a super-2 number, since 2×23486436² = 1103225351964192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23486436.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70791 + ... + 71121.

Almost surely, 2^23486436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23486436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31299632).

23486436 is an abundant number, since it is smaller than the sum of its proper divisors (39112828).

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

23486436 is a wasteful number, since it uses less digits than its factorization.

23486436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 409 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 23486436 is about 4846.2806357040. The cubic root of 23486436 is about 286.3775963510.

The spelling of 23486436 in words is "twenty-three million, four hundred eighty-six thousand, four hundred thirty-six".