1873222493 has 8 divisors (see below), whose sum is σ = 1878007800. Its totient is φ = 1868444928.

The previous prime is 1873222453. The next prime is 1873222529. The reversal of 1873222493 is 3942223781.

It can be written as a sum of positive squares in 4 ways, for example, as 153710404 + 1719512089 = 12398^2 + 41467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1873222493 - 2²⁴ = 1856445277 is a prime.

It is a super-2 number, since 2×1873222493² = 7017925016562270098, 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 1873222493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1873222453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067705 + ... + 1069457.

It is an arithmetic number, because the mean of its divisors is an integer number (234750975).

Almost surely, 2^1873222493 is an apocalyptic number.

It is an amenable number.

1873222493 is a deficient number, since it is larger than the sum of its proper divisors (4785307).

1873222493 is a wasteful number, since it uses less digits than its factorization.

1873222493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871.

The product of its digits is 145152, while the sum is 41.

The square root of 1873222493 is about 43280.7404395997. The cubic root of 1873222493 is about 1232.7162509241.

The spelling of 1873222493 in words is "one billion, eight hundred seventy-three million, two hundred twenty-two thousand, four hundred ninety-three".