14991930 has 48 divisors (see below), whose sum is σ = 39264264. Its totient is φ = 3968640.

The previous prime is 14991917. The next prime is 14991947. The reversal of 14991930 is 3919941.

It can be written as a sum of positive squares in 4 ways, for example, as 11675889 + 3316041 = 3417^2 + 1821^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13600 + ... + 14660.

Almost surely, 2^14991930 is an apocalyptic number.

14991930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14991930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19632132).

14991930 is an abundant number, since it is smaller than the sum of its proper divisors (24272334).

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

14991930 is a wasteful number, since it uses less digits than its factorization.

14991930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 14991930 is about 3871.9413735231. The cubic root of 14991930 is about 246.5769720960.

The spelling of 14991930 in words is "fourteen million, nine hundred ninety-one thousand, nine hundred thirty".