1220926 has 16 divisors (see below), whose sum is σ = 2150496. Its totient is φ = 508896.

The previous prime is 1220917. The next prime is 1220927. The reversal of 1220926 is 6290221.

It is a happy number.

It is a nialpdrome in base 11.

It is a zygodrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1220897 and 1220906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220927) 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, 661 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (134406).

2^1220926 is an apocalyptic number.

1220926 is a deficient number, since it is larger than the sum of its proper divisors (929570).

1220926 is a wasteful number, since it uses less digits than its factorization.

1220926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1220926 is about 1104.9552027119. The cubic root of 1220926 is about 106.8800005640.

The spelling of 1220926 in words is "one million, two hundred twenty thousand, nine hundred twenty-six".