18969048 has 96 divisors (see below), whose sum is σ = 59772960. Its totient is φ = 5322240.

The previous prime is 18969047. The next prime is 18969077. The reversal of 18969048 is 84096981.

It is a junction number, because it is equal to n+sod(n) for n = 18968994 and 18969012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18969047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30436 + ... + 31052.

It is an arithmetic number, because the mean of its divisors is an integer number (622635).

Almost surely, 2^18969048 is an apocalyptic number.

18969048 is a gapful number since it is divisible by the number (18) 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 18969048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29886480).

18969048 is an abundant number, since it is smaller than the sum of its proper divisors (40803912).

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

18969048 is a wasteful number, since it uses less digits than its factorization.

18969048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 18969048 is about 4355.3470585018. The cubic root of 18969048 is about 266.6951872273.

The spelling of 18969048 in words is "eighteen million, nine hundred sixty-nine thousand, forty-eight".