18090433248 has 48 divisors (see below), whose sum is σ = 49552062336. Its totient is φ = 5767963520.

The previous prime is 18090433243. The next prime is 18090433279. The reversal of 18090433248 is 84233409081.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18090433243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4094358 + ... + 4098773.

It is an arithmetic number, because the mean of its divisors is an integer number (1032334632).

Almost surely, 2^18090433248 is an apocalyptic number.

It is an amenable number.

18090433248 is an abundant number, since it is smaller than the sum of its proper divisors (31461629088).

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

18090433248 is a wasteful number, since it uses less digits than its factorization.

18090433248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8193167 (or 8193159 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 18090433248 in words is "eighteen billion, ninety million, four hundred thirty-three thousand, two hundred forty-eight".