19495116 has 18 divisors (see below), whose sum is σ = 49279412. Its totient is φ = 6498360.

The previous prime is 19495093. The next prime is 19495139. The reversal of 19495116 is 61159491.

It is an interprime number because it is at equal distance from previous prime (19495093) and next prime (19495139).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 541531 = 19495116 / (1 + 9 + 4 + 9 + 5 + 1 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270730 + ... + 270801.

Almost surely, 2^19495116 is an apocalyptic number.

It is an amenable number.

19495116 is an abundant number, since it is smaller than the sum of its proper divisors (29784296).

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

19495116 is a wasteful number, since it uses less digits than its factorization.

19495116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541541 (or 541536 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 19495116 is about 4415.3273944295. The cubic root of 19495116 is about 269.1381572661.

The spelling of 19495116 in words is "nineteen million, four hundred ninety-five thousand, one hundred sixteen".