1907226 has 40 divisors (see below), whose sum is σ = 4366164. Its totient is φ = 622080.

The previous prime is 1907209. The next prime is 1907231. The reversal of 1907226 is 6227091.

It can be written as a sum of positive squares in 2 ways, for example, as 1565001 + 342225 = 1251^2 + 585^2 .

It is a super-2 number, since 2×1907226² = 7275022030152, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1907226.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9786 + ... + 9978.

2^1907226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1907226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2183082).

1907226 is an abundant number, since it is smaller than the sum of its proper divisors (2458938).

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

1907226 is a wasteful number, since it uses less digits than its factorization.

1907226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 259 counting only the distinct ones).

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

The square root of 1907226 is about 1381.0235334707. The cubic root of 1907226 is about 124.0130492684.

The spelling of 1907226 in words is "one million, nine hundred seven thousand, two hundred twenty-six".