18896040 has 48 divisors (see below), whose sum is σ = 61413300. Its totient is φ = 5038848.

The previous prime is 18895991. The next prime is 18896047. The reversal of 18896040 is 4069881.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 1205604 = 4206^2 + 1098^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18895986 and 18896004.

It is not an unprimeable number, because it can be changed into a prime (18896047) 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, 25885 + ... + 26604.

Almost surely, 2^18896040 is an apocalyptic number.

18896040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18896040 is an abundant number, since it is smaller than the sum of its proper divisors (42517260).

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

18896040 is a wasteful number, since it uses less digits than its factorization.

18896040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52506 (or 52499 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 18896040 is about 4346.9575567286. The cubic root of 18896040 is about 266.3525955204.

The spelling of 18896040 in words is "eighteen million, eight hundred ninety-six thousand, forty".