19140038 has 8 divisors (see below), whose sum is σ = 29114640. Its totient is φ = 9435160.

The previous prime is 19139999. The next prime is 19140059. The reversal of 19140038 is 83004191.

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

It is a junction number, because it is equal to n+sod(n) for n = 19139989 and 19140016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67253 + ... + 67536.

It is an arithmetic number, because the mean of its divisors is an integer number (3639330).

Almost surely, 2^19140038 is an apocalyptic number.

19140038 is the 2339-th centered heptagonal number.

19140038 is a deficient number, since it is larger than the sum of its proper divisors (9974602).

19140038 is a wasteful number, since it uses less digits than its factorization.

19140038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134862.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 19140038 is about 4374.9329137714. The cubic root of 19140038 is about 267.4941356038.

The spelling of 19140038 in words is "nineteen million, one hundred forty thousand, thirty-eight".