19960812 has 18 divisors (see below), whose sum is σ = 50456588. Its totient is φ = 6653592.

The previous prime is 19960799. The next prime is 19960813. The reversal of 19960812 is 21806991.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 554467 = 19960812 / (1 + 9 + 9 + 6 + 0 + 8 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (19960813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277198 + ... + 277269.

Almost surely, 2^19960812 is an apocalyptic number.

19960812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19960812 is an abundant number, since it is smaller than the sum of its proper divisors (30495776).

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

19960812 is a wasteful number, since it uses less digits than its factorization.

19960812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554477 (or 554472 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 19960812 is about 4467.7524550942. The cubic root of 19960812 is about 271.2643580782.

The spelling of 19960812 in words is "nineteen million, nine hundred sixty thousand, eight hundred twelve".