272405393 has 8 divisors (see below), whose sum is σ = 293556648. Its totient is φ = 251282304.

The previous prime is 272405363. The next prime is 272405407. The reversal of 272405393 is 393504272.

It can be written as a sum of positive squares in 4 ways, for example, as 1868689 + 270536704 = 1367^2 + 16448^2 .

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

It is not a de Polignac number, because 272405393 - 2¹⁴ = 272389009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (272405363) 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, 15821 + ... + 28197.

It is an arithmetic number, because the mean of its divisors is an integer number (36694581).

Almost surely, 2^272405393 is an apocalyptic number.

It is an amenable number.

272405393 is a deficient number, since it is larger than the sum of its proper divisors (21151255).

272405393 is a wasteful number, since it uses less digits than its factorization.

272405393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14083.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 272405393 is about 16504.7082070541. The cubic root of 272405393 is about 648.2440916341.

The spelling of 272405393 in words is "two hundred seventy-two million, four hundred five thousand, three hundred ninety-three".