13722770 has 16 divisors (see below), whose sum is σ = 25498368. Its totient is φ = 5311920.

The previous prime is 13722767. The next prime is 13722799. The reversal of 13722770 is 7722731.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21824 + ... + 22443.

It is an arithmetic number, because the mean of its divisors is an integer number (1593648).

Almost surely, 2^13722770 is an apocalyptic number.

13722770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13722770 is a deficient number, since it is larger than the sum of its proper divisors (11775598).

13722770 is a wasteful number, since it uses less digits than its factorization.

13722770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44305.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 13722770 is about 3704.4257314731. The cubic root of 13722770 is about 239.4127424485.

The spelling of 13722770 in words is "thirteen million, seven hundred twenty-two thousand, seven hundred seventy".