18896340 has 48 divisors (see below), whose sum is σ = 55214208. Its totient is φ = 4819584.

The previous prime is 18896327. The next prime is 18896341. The reversal of 18896340 is 4369881.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18896341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5467 + ... + 8226.

It is an arithmetic number, because the mean of its divisors is an integer number (1150296).

Almost surely, 2^18896340 is an apocalyptic number.

18896340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18896340 is an abundant number, since it is smaller than the sum of its proper divisors (36317868).

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

18896340 is a wasteful number, since it uses less digits than its factorization.

18896340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13728 (or 13726 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 18896340 is about 4346.9920634848. The cubic root of 18896340 is about 266.3540050813.

The spelling of 18896340 in words is "eighteen million, eight hundred ninety-six thousand, three hundred forty".