1442602621 has 4 divisors (see below), whose sum is σ = 1444661244. Its totient is φ = 1440544000.

The previous prime is 1442602597. The next prime is 1442602627. The reversal of 1442602621 is 1262062441.

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 1268072100 + 174530521 = 35610^2 + 13211^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442602621 - 2¹⁵ = 1442569853 is a prime.

It is a super-2 number, since 2×1442602621² = 4162204644232139282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442602621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442602627) 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, 1028260 + ... + 1029661.

It is an arithmetic number, because the mean of its divisors is an integer number (361165311).

Almost surely, 2^1442602621 is an apocalyptic number.

It is an amenable number.

1442602621 is a deficient number, since it is larger than the sum of its proper divisors (2058623).

1442602621 is an equidigital number, since it uses as much as digits as its factorization.

1442602621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058622.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1442602621 is about 37981.6089838227. The cubic root of 1442602621 is about 1129.9231474608.

The spelling of 1442602621 in words is "one billion, four hundred forty-two million, six hundred two thousand, six hundred twenty-one".