1226316 has 48 divisors (see below), whose sum is σ = 3524864. Its totient is φ = 323136.

The previous prime is 1226311. The next prime is 1226321. The reversal of 1226316 is 6136221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1226311) and next prime (1226321).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1226292 and 1226301.

It is not an unprimeable number, because it can be changed into a prime (1226311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531 + ... + 1653.

2^1226316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762432).

1226316 is an abundant number, since it is smaller than the sum of its proper divisors (2298548).

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

1226316 is a wasteful number, since it uses less digits than its factorization.

1226316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1148 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 1226316 is about 1107.3915296768. The cubic root of 1226316 is about 107.0370500862.

The spelling of 1226316 in words is "one million, two hundred twenty-six thousand, three hundred sixteen".