1226490 has 16 divisors (see below), whose sum is σ = 2943648. Its totient is φ = 327056.

The previous prime is 1226483. The next prime is 1226501. The reversal of 1226490 is 946221.

It is a self number, because there is not a number n which added to its sum of digits gives 1226490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20412 + ... + 20471.

It is an arithmetic number, because the mean of its divisors is an integer number (183978).

2^1226490 is an apocalyptic number.

1226490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226490 is an abundant number, since it is smaller than the sum of its proper divisors (1717158).

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

1226490 is a wasteful number, since it uses less digits than its factorization.

1226490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40893.

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

The square root of 1226490 is about 1107.4700898896. The cubic root of 1226490 is about 107.0421122849.

The spelling of 1226490 in words is "one million, two hundred twenty-six thousand, four hundred ninety".