19883742 has 8 divisors (see below), whose sum is σ = 39767496. Its totient is φ = 6627912.

The previous prime is 19883737. The next prime is 19883771. The reversal of 19883742 is 24738891.

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

19883742 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 19883694 and 19883703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656973 + ... + 1656984.

It is an arithmetic number, because the mean of its divisors is an integer number (4970937).

Almost surely, 2^19883742 is an apocalyptic number.

19883742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19883742 is a wasteful number, since it uses less digits than its factorization.

19883742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313962.

The product of its digits is 96768, while the sum is 42.

The square root of 19883742 is about 4459.1189712767. The cubic root of 19883742 is about 270.9147846430.

The spelling of 19883742 in words is "nineteen million, eight hundred eighty-three thousand, seven hundred forty-two".