1022742 has 24 divisors (see below), whose sum is σ = 2532816. Its totient is φ = 292176.

The previous prime is 1022729. The next prime is 1022761. The reversal of 1022742 is 2472201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3933 + ... + 4184.

It is an arithmetic number, because the mean of its divisors is an integer number (105534).

2^1022742 is an apocalyptic number.

1022742 is an abundant number, since it is smaller than the sum of its proper divisors (1510074).

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

1022742 is a wasteful number, since it uses less digits than its factorization.

1022742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132 (or 8129 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1022742 is about 1011.3070750272. The cubic root of 1022742 is about 100.7523915389.

Adding to 1022742 its reverse (2472201), we get a palindrome (3494943).

It can be divided in two parts, 1022 and 742, that added together give a square (1764 = 42²).

The spelling of 1022742 in words is "one million, twenty-two thousand, seven hundred forty-two".