19970368 has 56 divisors (see below), whose sum is σ = 45537120. Its totient is φ = 8593920.

The previous prime is 19970351. The next prime is 19970399. The reversal of 19970368 is 86307991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12630 + ... + 14122.

Almost surely, 2^19970368 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 19970368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22768560).

19970368 is an abundant number, since it is smaller than the sum of its proper divisors (25566752).

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

19970368 is a wasteful number, since it uses less digits than its factorization.

19970368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 19970368 is about 4468.8217686545. The cubic root of 19970368 is about 271.3076393611.

The spelling of 19970368 in words is "nineteen million, nine hundred seventy thousand, three hundred sixty-eight".