18764652 has 24 divisors (see below), whose sum is σ = 43997632. Its totient is φ = 6224400.

The previous prime is 18764639. The next prime is 18764657. The reversal of 18764652 is 25646781.

It is a super-2 number, since 2×18764652² = 704224329362208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18764652.

It is not an unprimeable number, because it can be changed into a prime (18764657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174 + ... + 6237.

Almost surely, 2^18764652 is an apocalyptic number.

18764652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18764652 is an abundant number, since it is smaller than the sum of its proper divisors (25232980).

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

18764652 is a wasteful number, since it uses less digits than its factorization.

18764652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7629 (or 7627 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 18764652 is about 4331.8185557569. The cubic root of 18764652 is about 265.7338246042.

The spelling of 18764652 in words is "eighteen million, seven hundred sixty-four thousand, six hundred fifty-two".