19072493 has 8 divisors (see below), whose sum is σ = 20998560. Its totient is φ = 17178480.

The previous prime is 19072489. The next prime is 19072507. The reversal of 19072493 is 39427091.

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

It is not a de Polignac number, because 19072493 - 2² = 19072489 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19072423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6755 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (2624820).

Almost surely, 2^19072493 is an apocalyptic number.

It is an amenable number.

19072493 is a deficient number, since it is larger than the sum of its proper divisors (1926067).

19072493 is a wasteful number, since it uses less digits than its factorization.

19072493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16027.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 19072493 is about 4367.2065442340. The cubic root of 19072493 is about 267.1791033669.

The spelling of 19072493 in words is "nineteen million, seventy-two thousand, four hundred ninety-three".