1022378 has 16 divisors (see below), whose sum is σ = 1772160. Its totient is φ = 433296.

The previous prime is 1022377. The next prime is 1022381. The reversal of 1022378 is 8732201.

It is not an unprimeable number, because it can be changed into a prime (1022377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088 + ... + 1796.

It is an arithmetic number, because the mean of its divisors is an integer number (110760).

2^1022378 is an apocalyptic number.

1022378 is a deficient number, since it is larger than the sum of its proper divisors (749782).

1022378 is a wasteful number, since it uses less digits than its factorization.

1022378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

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

The square root of 1022378 is about 1011.1270938908. The cubic root of 1022378 is about 100.7404373275.

Adding to 1022378 its reverse (8732201), we get a palindrome (9754579).

It can be divided in two parts, 10223 and 78, that added together give a palindrome (10301).

The spelling of 1022378 in words is "one million, twenty-two thousand, three hundred seventy-eight".