19442896 has 40 divisors (see below), whose sum is σ = 41791968. Its totient is φ = 8688000.

The previous prime is 19442881. The next prime is 19442939. The reversal of 19442896 is 69824491.

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, 9831 + ... + 11641.

Almost surely, 2^19442896 is an apocalyptic number.

19442896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19442896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20895984).

19442896 is an abundant number, since it is smaller than the sum of its proper divisors (22349072).

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

19442896 is a wasteful number, since it uses less digits than its factorization.

19442896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891 (or 1885 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 19442896 is about 4409.4099378488. The cubic root of 19442896 is about 268.8976361347.

The spelling of 19442896 in words is "nineteen million, four hundred forty-two thousand, eight hundred ninety-six".