14721994 has 8 divisors (see below), whose sum is σ = 25237728. Its totient is φ = 6309420.

The previous prime is 14721991. The next prime is 14722003. The reversal of 14721994 is 49912741.

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

It is not an unprimeable number, because it can be changed into a prime (14721991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525772 + ... + 525799.

It is an arithmetic number, because the mean of its divisors is an integer number (3154716).

Almost surely, 2^14721994 is an apocalyptic number.

14721994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

14721994 is a deficient number, since it is larger than the sum of its proper divisors (10515734).

14721994 is a wasteful number, since it uses less digits than its factorization.

14721994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051580.

The product of its digits is 18144, while the sum is 37.

The square root of 14721994 is about 3836.9250709390. The cubic root of 14721994 is about 245.0880927140.

The spelling of 14721994 in words is "fourteen million, seven hundred twenty-one thousand, nine hundred ninety-four".