1227776 has 44 divisors (see below), whose sum is σ = 2702040. Its totient is φ = 552960.

The previous prime is 1227769. The next prime is 1227797. The reversal of 1227776 is 6777221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (44).

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11210 + ... + 11318.

It is an arithmetic number, because the mean of its divisors is an integer number (61410).

2^1227776 is an apocalyptic number.

1227776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351020).

1227776 is an abundant number, since it is smaller than the sum of its proper divisors (1474264).

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

1227776 is a wasteful number, since it uses less digits than its factorization.

1227776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 122 counting only the distinct ones).

The product of its digits is 8232, while the sum is 32.

The square root of 1227776 is about 1108.0505403636. The cubic root of 1227776 is about 107.0795111692.

The spelling of 1227776 in words is "one million, two hundred twenty-seven thousand, seven hundred seventy-six".