1074642221 has 4 divisors (see below), whose sum is σ = 1082373600. Its totient is φ = 1066910844.

The previous prime is 1074642167. The next prime is 1074642259. The reversal of 1074642221 is 1222464701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1074642221 - 2¹⁸ = 1074380077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1074642281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3865481 + ... + 3865758.

It is an arithmetic number, because the mean of its divisors is an integer number (270593400).

Almost surely, 2^1074642221 is an apocalyptic number.

It is an amenable number.

1074642221 is a deficient number, since it is larger than the sum of its proper divisors (7731379).

1074642221 is an equidigital number, since it uses as much as digits as its factorization.

1074642221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731378.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1074642221 is about 32781.7360888651. The cubic root of 1074642221 is about 1024.2861485285.

The spelling of 1074642221 in words is "one billion, seventy-four million, six hundred forty-two thousand, two hundred twenty-one".