18346536 has 96 divisors (see below), whose sum is σ = 56707560. Its totient is φ = 5308416.

The previous prime is 18346529. The next prime is 18346583. The reversal of 18346536 is 63564381.

18346536 is a `hidden beast` number, since 1 + 83 + 46 + 536 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16892100 + 1454436 = 4110^2 + 1206^2 .

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 18346536.

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, 15336 + ... + 16488.

Almost surely, 2^18346536 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 18346536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28353780).

18346536 is an abundant number, since it is smaller than the sum of its proper divisors (38361024).

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

18346536 is a wasteful number, since it uses less digits than its factorization.

18346536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1188 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 18346536 is about 4283.2856547282. The cubic root of 18346536 is about 263.7452777244.

The spelling of 18346536 in words is "eighteen million, three hundred forty-six thousand, five hundred thirty-six".