1022340 has 48 divisors (see below), whose sum is σ = 3124800. Its totient is φ = 247680.

The previous prime is 1022303. The next prime is 1022341. The reversal of 1022340 is 432201.

1022340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an Ulam number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022341) 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, 115 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (65100).

2^1022340 is an apocalyptic number.

1022340 is a gapful number since it is divisible by the number (10) 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 1022340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562400).

1022340 is an abundant number, since it is smaller than the sum of its proper divisors (2102460).

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

1022340 is a wasteful number, since it uses less digits than its factorization.

1022340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1022340 is about 1011.1083028044. The cubic root of 1022340 is about 100.7391891969.

Adding to 1022340 its reverse (432201), we get a palindrome (1454541).

It can be divided in two parts, 102 and 2340, that added together give a palindrome (2442).

The spelling of 1022340 in words is "one million, twenty-two thousand, three hundred forty".