13421732 has 12 divisors (see below), whose sum is σ = 23590476. Its totient is φ = 6681600.

The previous prime is 13421731. The next prime is 13421747. The reversal of 13421732 is 23712431.

It can be written as a sum of positive squares in 2 ways, for example, as 9634816 + 3786916 = 3104^2 + 1946^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13421698 and 13421707.

It is not an unprimeable number, because it can be changed into a prime (13421731) 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, 6269 + ... + 8132.

It is an arithmetic number, because the mean of its divisors is an integer number (1965873).

Almost surely, 2^13421732 is an apocalyptic number.

It is an amenable number.

13421732 is a deficient number, since it is larger than the sum of its proper divisors (10168744).

13421732 is a wasteful number, since it uses less digits than its factorization.

13421732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14638 (or 14636 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 13421732 is about 3663.5682059981. The cubic root of 13421732 is about 237.6491074756.

The spelling of 13421732 in words is "thirteen million, four hundred twenty-one thousand, seven hundred thirty-two".