13940226 has 36 divisors (see below), whose sum is σ = 30917718. Its totient is φ = 4538592.

The previous prime is 13940209. The next prime is 13940237. The reversal of 13940226 is 62204931.

It can be written as a sum of positive squares in only one way, i.e., 11553201 + 2387025 = 3399^2 + 1545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13940226.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 135291 + ... + 135393.

Almost surely, 2^13940226 is an apocalyptic number.

13940226 is an abundant number, since it is smaller than the sum of its proper divisors (16977492).

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

13940226 is a wasteful number, since it uses less digits than its factorization.

13940226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13940226 is about 3733.6612058407. The cubic root of 13940226 is about 240.6707279373.

The spelling of 13940226 in words is "thirteen million, nine hundred forty thousand, two hundred twenty-six".