19006972 has 6 divisors (see below), whose sum is σ = 33262208. Its totient is φ = 9503484.

The previous prime is 19006963. The next prime is 19006979. The reversal of 19006972 is 27960091.

It is a super-2 number, since 2×19006972² = 722529969217568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19006979) by changing a digit.

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 as a sum of consecutive naturals, namely, 2375868 + ... + 2375875.

Almost surely, 2^19006972 is an apocalyptic number.

It is an amenable number.

19006972 is a deficient number, since it is larger than the sum of its proper divisors (14255236).

19006972 is a wasteful number, since it uses less digits than its factorization.

19006972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751747 (or 4751745 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 19006972 is about 4359.6986134365. The cubic root of 19006972 is about 266.8727996462.

The spelling of 19006972 in words is "nineteen million, six thousand, nine hundred seventy-two".