18649752 has 64 divisors (see below), whose sum is σ = 52133760. Its totient is φ = 5510400.

The previous prime is 18649747. The next prime is 18649753. The reversal of 18649752 is 25794681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18649753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9963 + ... + 11685.

It is an arithmetic number, because the mean of its divisors is an integer number (814590).

Almost surely, 2^18649752 is an apocalyptic number.

18649752 is a gapful number since it is divisible by the number (12) 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 18649752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26066880).

18649752 is an abundant number, since it is smaller than the sum of its proper divisors (33484008).

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

18649752 is a wasteful number, since it uses less digits than its factorization.

18649752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1780 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 18649752 is about 4318.5358629980. The cubic root of 18649752 is about 265.1903319958.

Subtracting 18649752 from its reverse (25794681), we obtain a square (7144929 = 2673²).

The spelling of 18649752 in words is "eighteen million, six hundred forty-nine thousand, seven hundred fifty-two".