19733142 has 64 divisors (see below), whose sum is σ = 47013120. Its totient is φ = 5443200.

The previous prime is 19733123. The next prime is 19733183. The reversal of 19733142 is 24133791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93417 + ... + 93627.

It is an arithmetic number, because the mean of its divisors is an integer number (734580).

Almost surely, 2^19733142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19733142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23506560).

19733142 is an abundant number, since it is smaller than the sum of its proper divisors (27279978).

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

19733142 is a wasteful number, since it uses less digits than its factorization.

19733142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its digits is 4536, while the sum is 30.

The square root of 19733142 is about 4442.2001305659. The cubic root of 19733142 is about 270.2290785625.

It can be divided in two parts, 1973 and 3142, that added together give a palindrome (5115).

The spelling of 19733142 in words is "nineteen million, seven hundred thirty-three thousand, one hundred forty-two".