19951422 has 8 divisors (see below), whose sum is σ = 39902856. Its totient is φ = 6650472.

The previous prime is 19951417. The next prime is 19951423. The reversal of 19951422 is 22415991.

It is a sphenic number, since it is the product of 3 distinct primes.

19951422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19951423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662613 + ... + 1662624.

It is an arithmetic number, because the mean of its divisors is an integer number (4987857).

Almost surely, 2^19951422 is an apocalyptic number.

19951422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19951422 is a wasteful number, since it uses less digits than its factorization.

19951422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325242.

The product of its digits is 6480, while the sum is 33.

The square root of 19951422 is about 4466.7014675261. The cubic root of 19951422 is about 271.2218151890.

The spelling of 19951422 in words is "nineteen million, nine hundred fifty-one thousand, four hundred twenty-two".