1420223773 has 4 divisors (see below), whose sum is σ = 1426319388. Its totient is φ = 1414128160.

The previous prime is 1420223771. The next prime is 1420223807. The reversal of 1420223773 is 3773220241.

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 827885529 + 592338244 = 28773^2 + 24338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420223773 - 2¹ = 1420223771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420223771) 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, 3047458 + ... + 3047923.

It is an arithmetic number, because the mean of its divisors is an integer number (356579847).

Almost surely, 2^1420223773 is an apocalyptic number.

It is an amenable number.

1420223773 is a deficient number, since it is larger than the sum of its proper divisors (6095615).

1420223773 is an equidigital number, since it uses as much as digits as its factorization.

1420223773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095614.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 1420223773 is about 37685.8564052882. The cubic root of 1420223773 is about 1124.0499034867.

The spelling of 1420223773 in words is "one billion, four hundred twenty million, two hundred twenty-three thousand, seven hundred seventy-three".