1226610 has 128 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 250560.

The previous prime is 1226609. The next prime is 1226611. The reversal of 1226610 is 166221.

It is a happy number.

1226610 is a `hidden beast` number, since 1 + 2 + 2 + 661 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1226609) and next prime (1226611).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20761 + ... + 20819.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2^1226610 is an apocalyptic number.

1226610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073600).

1226610 is an abundant number, since it is smaller than the sum of its proper divisors (2920590).

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

1226610 is a wasteful number, since it uses less digits than its factorization.

1226610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1226610 is about 1107.5242660998. The cubic root of 1226610 is about 107.0456031775.

The spelling of 1226610 in words is "one million, two hundred twenty-six thousand, six hundred ten".