13922745 has 32 divisors (see below), whose sum is σ = 23950080. Its totient is φ = 6881280.

The previous prime is 13922743. The next prime is 13922771. The reversal of 13922745 is 54722931.

It is not a de Polignac number, because 13922745 - 2¹ = 13922743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13922743) 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 31 ways as a sum of consecutive naturals, for example, 17721 + ... + 18489.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^13922745 is an apocalyptic number.

13922745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13922745 is a deficient number, since it is larger than the sum of its proper divisors (10027335).

13922745 is a wasteful number, since it uses less digits than its factorization.

13922745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865.

The product of its digits is 15120, while the sum is 33.

The square root of 13922745 is about 3731.3194717151. The cubic root of 13922745 is about 240.5700857427.

The spelling of 13922745 in words is "thirteen million, nine hundred twenty-two thousand, seven hundred forty-five".