1022738 has 8 divisors (see below), whose sum is σ = 1540620. Its totient is φ = 509200.

The previous prime is 1022729. The next prime is 1022761. The reversal of 1022738 is 8372201.

It can be written as a sum of positive squares in 2 ways, for example, as 779689 + 243049 = 883^2 + 493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 413 + ... + 1488.

2^1022738 is an apocalyptic number.

1022738 is a deficient number, since it is larger than the sum of its proper divisors (517882).

1022738 is a wasteful number, since it uses less digits than its factorization.

1022738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1022738 is about 1011.3050973865. The cubic root of 1022738 is about 100.7522601894.

Adding to 1022738 its reverse (8372201), we get a palindrome (9394939).

The spelling of 1022738 in words is "one million, twenty-two thousand, seven hundred thirty-eight".