1426788 has 48 divisors (see below), whose sum is σ = 4038720. Its totient is φ = 432000.

The previous prime is 1426781. The next prime is 1426801. The reversal of 1426788 is 8876241.

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 (1426781) 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, 588 + ... + 1788.

It is an arithmetic number, because the mean of its divisors is an integer number (84140).

2^1426788 is an apocalyptic number.

1426788 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 1426788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2019360).

1426788 is an abundant number, since it is smaller than the sum of its proper divisors (2611932).

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

1426788 is a wasteful number, since it uses less digits than its factorization.

1426788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1217 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 1426788 is about 1194.4823146451. The cubic root of 1426788 is about 112.5779015995.

The spelling of 1426788 in words is "one million, four hundred twenty-six thousand, seven hundred eighty-eight".