19922994 has 48 divisors (see below), whose sum is σ = 53132352. Its totient is φ = 5253984.

The previous prime is 19922993. The next prime is 19923011. The reversal of 19922994 is 49922991.

It is not an unprimeable number, because it can be changed into a prime (19922993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4444 + ... + 7719.

It is an arithmetic number, because the mean of its divisors is an integer number (1106924).

Almost surely, 2^19922994 is an apocalyptic number.

19922994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19922994 is an abundant number, since it is smaller than the sum of its proper divisors (33209358).

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

19922994 is a wasteful number, since it uses less digits than its factorization.

19922994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12191 (or 12188 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 19922994 is about 4463.5181191522. The cubic root of 19922994 is about 271.0929361765.

The spelling of 19922994 in words is "nineteen million, nine hundred twenty-two thousand, nine hundred ninety-four".