19702116 has 180 divisors, whose sum is σ = 64307628. Its totient is φ = 5225472.

The previous prime is 19702079. The next prime is 19702129. The reversal of 19702116 is 61120791.

It can be written as a sum of positive squares in 2 ways, for example, as 13351716 + 6350400 = 3654^2 + 2520^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 19702116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 269856 + ... + 269928.

Almost surely, 2^19702116 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 19702116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32153814).

19702116 is an abundant number, since it is smaller than the sum of its proper divisors (44605512).

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

19702116 is a wasteful number, since it uses less digits than its factorization.

19702116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 19702116 is about 4438.7065683598. The cubic root of 19702116 is about 270.0873791262.

The spelling of 19702116 in words is "nineteen million, seven hundred two thousand, one hundred sixteen".