1209426 has 24 divisors (see below), whose sum is σ = 2571120. Its totient is φ = 378216.

The previous prime is 1209379. The next prime is 1209427. The reversal of 1209426 is 6249021.

It is a super-2 number, since 2×1209426² = 2925422498952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1209396 and 1209405.

It is not an unprimeable number, because it can be changed into a prime (1209427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11691 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (107130).

2^1209426 is an apocalyptic number.

1209426 is an abundant number, since it is smaller than the sum of its proper divisors (1361694).

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

1209426 is a wasteful number, since it uses less digits than its factorization.

1209426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1209426 is about 1099.7390599592. The cubic root of 1209426 is about 106.5433709927.

The spelling of 1209426 in words is "one million, two hundred nine thousand, four hundred twenty-six".