19237842 has 48 divisors (see below), whose sum is σ = 47261760. Its totient is φ = 5606496.

The previous prime is 19237831. The next prime is 19237847. The reversal of 19237842 is 24873291.

It is a junction number, because it is equal to n+sod(n) for n = 19237797 and 19237806.

It is not an unprimeable number, because it can be changed into a prime (19237847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2283 + ... + 6609.

It is an arithmetic number, because the mean of its divisors is an integer number (984620).

Almost surely, 2^19237842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19237842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23630880).

19237842 is an abundant number, since it is smaller than the sum of its proper divisors (28023918).

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

19237842 is a wasteful number, since it uses less digits than its factorization.

19237842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4367 (or 4364 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 19237842 is about 4386.0964421681. The cubic root of 19237842 is about 267.9489859832.

The spelling of 19237842 in words is "nineteen million, two hundred thirty-seven thousand, eight hundred forty-two".