1040221705 has 4 divisors (see below), whose sum is σ = 1248266052. Its totient is φ = 832177360.

The previous prime is 1040221681. The next prime is 1040221723. The reversal of 1040221705 is 5071220401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 513656896 + 526564809 = 22664^2 + 22947^2 .

It is not a de Polignac number, because 1040221705 - 2⁷ = 1040221577 is a prime.

It is a super-2 number, since 2×1040221705² = 2164122391106214050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104022166 + ... + 104022175.

It is an arithmetic number, because the mean of its divisors is an integer number (312066513).

Almost surely, 2^1040221705 is an apocalyptic number.

It is an amenable number.

1040221705 is a deficient number, since it is larger than the sum of its proper divisors (208044347).

1040221705 is an equidigital number, since it uses as much as digits as its factorization.

1040221705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208044346.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1040221705 is about 32252.4682001238. The cubic root of 1040221705 is about 1013.2313930977.

The spelling of 1040221705 in words is "one billion, forty million, two hundred twenty-one thousand, seven hundred five".