19139010 has 64 divisors (see below), whose sum is σ = 51010560. Its totient is φ = 4556480.

The previous prime is 19139009. The next prime is 19139017. The reversal of 19139010 is 1093191.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19139017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18979 + ... + 19961.

It is an arithmetic number, because the mean of its divisors is an integer number (797040).

Almost surely, 2^19139010 is an apocalyptic number.

19139010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19139010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25505280).

19139010 is an abundant number, since it is smaller than the sum of its proper divisors (31871550).

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

19139010 is a wasteful number, since it uses less digits than its factorization.

19139010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 19139010 is about 4374.8154246779. The cubic root of 19139010 is about 267.4893465347.

The spelling of 19139010 in words is "nineteen million, one hundred thirty-nine thousand, ten".