1022770 has 32 divisors (see below), whose sum is σ = 2217600. Its totient is φ = 331776.

The previous prime is 1022761. The next prime is 1022773. The reversal of 1022770 is 772201.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1022773) 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, 946 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (69300).

2^1022770 is an apocalyptic number.

1022770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1022770 is an abundant number, since it is smaller than the sum of its proper divisors (1194830).

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

1022770 is a wasteful number, since it uses less digits than its factorization.

1022770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 1022770 is about 1011.3209184033. The cubic root of 1022770 is about 100.7533109762.

Adding to 1022770 its reverse (772201), we get a palindrome (1794971).

The spelling of 1022770 in words is "one million, twenty-two thousand, seven hundred seventy".