13722090 has 16 divisors (see below), whose sum is σ = 32933088. Its totient is φ = 3659216.

The previous prime is 13722089. The next prime is 13722091. The reversal of 13722090 is 9022731.

13722090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13722089) and next prime (13722091).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13722090.

It is not an unprimeable number, because it can be changed into a prime (13722091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228672 + ... + 228731.

It is an arithmetic number, because the mean of its divisors is an integer number (2058318).

Almost surely, 2^13722090 is an apocalyptic number.

13722090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13722090 is an abundant number, since it is smaller than the sum of its proper divisors (19210998).

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

13722090 is a wasteful number, since it uses less digits than its factorization.

13722090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457413.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13722090 is about 3704.3339482288. Note that the first 3 decimals coincide. The cubic root of 13722090 is about 239.4087878690.

The spelling of 13722090 in words is "thirteen million, seven hundred twenty-two thousand, ninety".