18550896 has 160 divisors (see below), whose sum is σ = 61329408. Its totient is φ = 4700160.

The previous prime is 18550891. The next prime is 18550907. The reversal of 18550896 is 69805581.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18550891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135340 + ... + 135476.

Almost surely, 2^18550896 is an apocalyptic number.

18550896 is a gapful number since it is divisible by the number (16) 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 18550896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30664704).

18550896 is an abundant number, since it is smaller than the sum of its proper divisors (42778512).

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

18550896 is a wasteful number, since it uses less digits than its factorization.

18550896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 18550896 is about 4307.0751096307. The cubic root of 18550896 is about 264.7209403663.

The spelling of 18550896 in words is "eighteen million, five hundred fifty thousand, eight hundred ninety-six".