19942260 has 96 divisors (see below), whose sum is σ = 61848192. Its totient is φ = 4769280.

The previous prime is 19942259. The next prime is 19942283. The reversal of 19942260 is 6224991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28515 + ... + 29205.

It is an arithmetic number, because the mean of its divisors is an integer number (644252).

Almost surely, 2^19942260 is an apocalyptic number.

19942260 is a gapful number since it is divisible by the number (10) 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 19942260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30924096).

19942260 is an abundant number, since it is smaller than the sum of its proper divisors (41905932).

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

19942260 is a wasteful number, since it uses less digits than its factorization.

19942260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 19942260 is about 4465.6757607332. The cubic root of 19942260 is about 271.1802924220.

It can be divided in two parts, 19942 and 260, that added together give a palindrome (20202).

The spelling of 19942260 in words is "nineteen million, nine hundred forty-two thousand, two hundred sixty".