19542068 has 48 divisors (see below), whose sum is σ = 43257984. Its totient is φ = 7516800.

The previous prime is 19542067. The next prime is 19542071. The reversal of 19542068 is 86024591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19542067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12743 + ... + 14193.

It is an arithmetic number, because the mean of its divisors is an integer number (901208).

Almost surely, 2^19542068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19542068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21628992).

19542068 is an abundant number, since it is smaller than the sum of its proper divisors (23715916).

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

19542068 is a wasteful number, since it uses less digits than its factorization.

19542068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 19542068 is about 4420.6411299720. The cubic root of 19542068 is about 269.3540479825.

The spelling of 19542068 in words is "nineteen million, five hundred forty-two thousand, sixty-eight".