18095940 has 192 divisors, whose sum is σ = 61931520. Its totient is φ = 4371840.

The previous prime is 18095929. The next prime is 18095941. The reversal of 18095940 is 4959081.

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 = 18095895 and 18095904.

It is not an unprimeable number, because it can be changed into a prime (18095941) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 384997 + ... + 385043.

It is an arithmetic number, because the mean of its divisors is an integer number (322560).

Almost surely, 2^18095940 is an apocalyptic number.

18095940 is a gapful number since it is divisible by the number (10) 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 18095940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30965760).

18095940 is an abundant number, since it is smaller than the sum of its proper divisors (43835580).

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

18095940 is a wasteful number, since it uses less digits than its factorization.

18095940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 18095940 is about 4253.9322984740. The cubic root of 18095940 is about 262.5389330008.

The spelling of 18095940 in words is "eighteen million, ninety-five thousand, nine hundred forty".