13920741 has 12 divisors (see below), whose sum is σ = 20852832. Its totient is φ = 9280332.

The previous prime is 13920737. The next prime is 13920743. The reversal of 13920741 is 14702931.

It is not a de Polignac number, because 13920741 - 2² = 13920737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13920743) 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 11 ways as a sum of consecutive naturals, for example, 28401 + ... + 28886.

It is an arithmetic number, because the mean of its divisors is an integer number (1737736).

Almost surely, 2^13920741 is an apocalyptic number.

It is an amenable number.

13920741 is a deficient number, since it is larger than the sum of its proper divisors (6932091).

13920741 is an frugal number, since it uses more digits than its factorization.

13920741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57302 (or 57290 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13920741 is about 3731.0509243375. The cubic root of 13920741 is about 240.5585428661.

The spelling of 13920741 in words is "thirteen million, nine hundred twenty thousand, seven hundred forty-one".