18949752 has 24 divisors (see below), whose sum is σ = 51322440. Its totient is φ = 6316560.

The previous prime is 18949751. The next prime is 18949753. The reversal of 18949752 is 25794981.

It is an interprime number because it is at equal distance from previous prime (18949751) and next prime (18949753).

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 18949698 and 18949707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18949751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131524 + ... + 131667.

It is an arithmetic number, because the mean of its divisors is an integer number (2138435).

Almost surely, 2^18949752 is an apocalyptic number.

18949752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18949752 is an abundant number, since it is smaller than the sum of its proper divisors (32372688).

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

18949752 is a wasteful number, since it uses less digits than its factorization.

18949752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263203 (or 263196 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 18949752 is about 4353.1312867866. The cubic root of 18949752 is about 266.6047258914.

It can be divided in two parts, 18949 and 752, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 18949752 in words is "eighteen million, nine hundred forty-nine thousand, seven hundred fifty-two".