1022040 has 96 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 254976.

The previous prime is 1022033. The next prime is 1022053. The reversal of 1022040 is 402201.

1022040 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 (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6037 + ... + 6203.

It is an arithmetic number, because the mean of its divisors is an integer number (36855).

2^1022040 is an apocalyptic number.

1022040 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 1022040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769040).

1022040 is an abundant number, since it is smaller than the sum of its proper divisors (2516040).

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

1022040 is a wasteful number, since it uses less digits than its factorization.

1022040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1022040 is about 1010.9599398591. The cubic root of 1022040 is about 100.7293344475.

Adding to 1022040 its reverse (402201), we get a palindrome (1424241).

The spelling of 1022040 in words is "one million, twenty-two thousand, forty".