1226988 has 60 divisors (see below), whose sum is σ = 3672592. Its totient is φ = 349920.

The previous prime is 1226983. The next prime is 1226993. The reversal of 1226988 is 8896221.

1226988 is nontrivially palindromic in base 8.

It is an interprime number because it is at equal distance from previous prime (1226983) and next prime (1226993).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1226983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1998 + ... + 2538.

2^1226988 is an apocalyptic number.

1226988 is a gapful number since it is divisible by the number (18) 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 1226988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1836296).

1226988 is an abundant number, since it is smaller than the sum of its proper divisors (2445604).

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

1226988 is a wasteful number, since it uses less digits than its factorization.

1226988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 553 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1226988 is about 1107.6949038431. The cubic root of 1226988 is about 107.0565980012.

It can be divided in two parts, 12 and 26988, that added together give a cube (27000 = 30³).

The spelling of 1226988 in words is "one million, two hundred twenty-six thousand, nine hundred eighty-eight".