493280185421 has 8 divisors (see below), whose sum is σ = 495542398104. Its totient is φ = 491022414400.

The previous prime is 493280185403. The next prime is 493280185441. The reversal of 493280185421 is 124581082394.

It can be written as a sum of positive squares in 4 ways, for example, as 122210371396 + 371069814025 = 349586^2 + 609155^2 .

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 493280185421 - 2¹⁴ = 493280169037 is a prime.

It is a super-2 number, since 2×493280185421² (a number of 24 digits) 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 (493280185441) 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, 887690 + ... + 1332123.

It is an arithmetic number, because the mean of its divisors is an integer number (61942799763).

Almost surely, 2^493280185421 is an apocalyptic number.

It is an amenable number.

493280185421 is a deficient number, since it is larger than the sum of its proper divisors (2262212683).

493280185421 is a wasteful number, since it uses less digits than its factorization.

493280185421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220831.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 493280185421 in words is "four hundred ninety-three billion, two hundred eighty million, one hundred eighty-five thousand, four hundred twenty-one".