13749722 has 16 divisors (see below), whose sum is σ = 24596352. Its totient is φ = 5636400.

The previous prime is 13749691. The next prime is 13749733. The reversal of 13749722 is 22794731.

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, 21029 + ... + 21672.

It is an arithmetic number, because the mean of its divisors is an integer number (1537272).

Almost surely, 2^13749722 is an apocalyptic number.

13749722 is a deficient number, since it is larger than the sum of its proper divisors (10846630).

13749722 is a wasteful number, since it uses less digits than its factorization.

13749722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42733.

The product of its digits is 21168, while the sum is 35.

The square root of 13749722 is about 3708.0617578460. The cubic root of 13749722 is about 239.5693782790.

The spelling of 13749722 in words is "thirteen million, seven hundred forty-nine thousand, seven hundred twenty-two".