1881226 has 16 divisors (see below), whose sum is σ = 2913120. Its totient is φ = 910800.

The previous prime is 1881223. The next prime is 1881241. The reversal of 1881226 is 6221881.

It is a super-2 number, since 2×1881226² = 7078022526152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1881194 and 1881203.

It is not an unprimeable number, because it can be changed into a prime (1881221) 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, 13465 + ... + 13603.

It is an arithmetic number, because the mean of its divisors is an integer number (182070).

2^1881226 is an apocalyptic number.

1881226 is a deficient number, since it is larger than the sum of its proper divisors (1031894).

1881226 is a wasteful number, since it uses less digits than its factorization.

1881226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309.

The product of its digits is 1536, while the sum is 28.

The square root of 1881226 is about 1371.5779234152. The cubic root of 1881226 is about 123.4469385829.

The spelling of 1881226 in words is "one million, eight hundred eighty-one thousand, two hundred twenty-six".