19961412 has 24 divisors (see below), whose sum is σ = 47216736. Its totient is φ = 6562368.

The previous prime is 19961393. The next prime is 19961413. The reversal of 19961412 is 21416991.

It is not an unprimeable number, because it can be changed into a prime (19961413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10518 + ... + 12269.

It is an arithmetic number, because the mean of its divisors is an integer number (1967364).

Almost surely, 2^19961412 is an apocalyptic number.

19961412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19961412 is an abundant number, since it is smaller than the sum of its proper divisors (27255324).

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

19961412 is a wasteful number, since it uses less digits than its factorization.

19961412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22867 (or 22865 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 19961412 is about 4467.8196024459. The cubic root of 19961412 is about 271.2670760201.

The spelling of 19961412 in words is "nineteen million, nine hundred sixty-one thousand, four hundred twelve".