19072494 has 48 divisors (see below), whose sum is σ = 47505120. Its totient is φ = 5417280.

The previous prime is 19072489. The next prime is 19072507. The reversal of 19072494 is 49427091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28524 + ... + 29184.

It is an arithmetic number, because the mean of its divisors is an integer number (989690).

Almost surely, 2^19072494 is an apocalyptic number.

19072494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19072494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23752560).

19072494 is an abundant number, since it is smaller than the sum of its proper divisors (28432626).

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

19072494 is a wasteful number, since it uses less digits than its factorization.

19072494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 19072494 is about 4367.2066587236. The cubic root of 19072494 is about 267.1791080364.

The spelling of 19072494 in words is "nineteen million, seventy-two thousand, four hundred ninety-four".