19140918 has 8 divisors (see below), whose sum is σ = 38281848. Its totient is φ = 6380304.

The previous prime is 19140917. The next prime is 19140937. The reversal of 19140918 is 81904191.

It is a sphenic number, since it is the product of 3 distinct primes.

19140918 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19140917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595071 + ... + 1595082.

It is an arithmetic number, because the mean of its divisors is an integer number (4785231).

Almost surely, 2^19140918 is an apocalyptic number.

19140918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19140918 is a wasteful number, since it uses less digits than its factorization.

19140918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190158.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 19140918 is about 4375.0334855861. The cubic root of 19140918 is about 267.4982350598.

The spelling of 19140918 in words is "nineteen million, one hundred forty thousand, nine hundred eighteen".