18958248 has 48 divisors (see below), whose sum is σ = 51667200. Its totient is φ = 6279840.

The previous prime is 18958243. The next prime is 18958271. The reversal of 18958248 is 84285981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18958241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12153 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (1076400).

Almost surely, 2^18958248 is an apocalyptic number.

18958248 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 18958248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25833600).

18958248 is an abundant number, since it is smaller than the sum of its proper divisors (32708952).

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

18958248 is a wasteful number, since it uses less digits than its factorization.

With its successor (18958249) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1655).

18958248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1655 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 18958248 is about 4354.1070267048. The cubic root of 18958248 is about 266.6445634458.

The spelling of 18958248 in words is "eighteen million, nine hundred fifty-eight thousand, two hundred forty-eight".