13961930 has 16 divisors (see below), whose sum is σ = 26610120. Its totient is φ = 5256192.

The previous prime is 13961923. The next prime is 13961933. The reversal of 13961930 is 3916931.

It can be written as a sum of positive squares in 4 ways, for example, as 9480241 + 4481689 = 3079^2 + 2117^2 .

It is not an unprimeable number, because it can be changed into a prime (13961933) 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 7 ways as a sum of consecutive naturals, for example, 40895 + ... + 41234.

Almost surely, 2^13961930 is an apocalyptic number.

13961930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13961930 is a deficient number, since it is larger than the sum of its proper divisors (12648190).

13961930 is a wasteful number, since it uses less digits than its factorization.

13961930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82153.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 13961930 is about 3736.5666058562. The cubic root of 13961930 is about 240.7955659165.

The spelling of 13961930 in words is "thirteen million, nine hundred sixty-one thousand, nine hundred thirty".