272021407 has 16 divisors (see below), whose sum is σ = 316368640. Its totient is φ = 229065408.

The previous prime is 272021389. The next prime is 272021413. The reversal of 272021407 is 704120272.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272021407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272021707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289843 + ... + 290779.

It is an arithmetic number, because the mean of its divisors is an integer number (19773040).

Almost surely, 2^272021407 is an apocalyptic number.

272021407 is a deficient number, since it is larger than the sum of its proper divisors (44347233).

272021407 is an equidigital number, since it uses as much as digits as its factorization.

272021407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 272021407 is about 16493.0714847175. The cubic root of 272021407 is about 647.9393574493.

Adding to 272021407 its reverse (704120272), we get a palindrome (976141679).

The spelling of 272021407 in words is "two hundred seventy-two million, twenty-one thousand, four hundred seven".