19868954 has 32 divisors (see below), whose sum is σ = 37241856. Its totient is φ = 7752960.

The previous prime is 19868939. The next prime is 19868957. The reversal of 19868954 is 45986891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19868957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6032 + ... + 8724.

It is an arithmetic number, because the mean of its divisors is an integer number (1163808).

Almost surely, 2^19868954 is an apocalyptic number.

19868954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19868954 is a deficient number, since it is larger than the sum of its proper divisors (17372902).

19868954 is a wasteful number, since it uses less digits than its factorization.

19868954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750.

The product of its digits is 622080, while the sum is 50.

The square root of 19868954 is about 4457.4604877665. The cubic root of 19868954 is about 270.8476061170.

The spelling of 19868954 in words is "nineteen million, eight hundred sixty-eight thousand, nine hundred fifty-four".