19089116 has 24 divisors (see below), whose sum is σ = 34352640. Its totient is φ = 9277632.

The previous prime is 19089089. The next prime is 19089139. The reversal of 19089116 is 61198091.

It is a super-2 number, since 2×19089116² = 728788699322912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26570 + ... + 27278.

It is an arithmetic number, because the mean of its divisors is an integer number (1431360).

Almost surely, 2^19089116 is an apocalyptic number.

It is an amenable number.

19089116 is a deficient number, since it is larger than the sum of its proper divisors (15263524).

19089116 is a wasteful number, since it uses less digits than its factorization.

19089116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 19089116 is about 4369.1092913774. The cubic root of 19089116 is about 267.2567025312.

The spelling of 19089116 in words is "nineteen million, eighty-nine thousand, one hundred sixteen".