19969012 has 24 divisors (see below), whose sum is σ = 40040000. Its totient is φ = 8536320.

The previous prime is 19968997. The next prime is 19969043. The reversal of 19969012 is 21096991.

It is a super-2 number, since 2×19969012² = 797522880512288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15364 + ... + 16612.

Almost surely, 2^19969012 is an apocalyptic number.

It is an amenable number.

19969012 is an abundant number, since it is smaller than the sum of its proper divisors (20070988).

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

19969012 is a wasteful number, since it uses less digits than its factorization.

19969012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 19969012 is about 4468.6700482358. The cubic root of 19969012 is about 271.3014985715.

The spelling of 19969012 in words is "nineteen million, nine hundred sixty-nine thousand, twelve".