1022801 has 8 divisors (see below), whose sum is σ = 1139880. Its totient is φ = 911232.

The previous prime is 1022797. The next prime is 1022821. The reversal of 1022801 is 1082201.

It can be written as a sum of positive squares in 4 ways, for example, as 274576 + 748225 = 524^2 + 865^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1022801 - 2² = 1022797 is a prime.

It is a super-2 number, since 2×1022801² = 2092243771202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022821) 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, 980 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (142485).

2^1022801 is an apocalyptic number.

It is an amenable number.

1022801 is a deficient number, since it is larger than the sum of its proper divisors (117079).

1022801 is a wasteful number, since it uses less digits than its factorization.

1022801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1022801 is about 1011.3362447772. The cubic root of 1022801 is about 100.7543289050.

The spelling of 1022801 in words is "one million, twenty-two thousand, eight hundred one".