1468942021 has 4 divisors (see below), whose sum is σ = 1469052544. Its totient is φ = 1468831500.

The previous prime is 1468942009. The next prime is 1468942061. The reversal of 1468942021 is 1202498641.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1468942021 - 2¹¹ = 1468939973 is a prime.

It is a super-2 number, since 2×1468942021² = 4315581322119128882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1468942061) 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, 32085 + ... + 62986.

It is an arithmetic number, because the mean of its divisors is an integer number (367263136).

Almost surely, 2^1468942021 is an apocalyptic number.

It is an amenable number.

1468942021 is a deficient number, since it is larger than the sum of its proper divisors (110523).

1468942021 is an equidigital number, since it uses as much as digits as its factorization.

1468942021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110522.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1468942021 is about 38326.7794237919. The cubic root of 1468942021 is about 1136.7585206924.

The spelling of 1468942021 in words is "one billion, four hundred sixty-eight million, nine hundred forty-two thousand, twenty-one".