421727296 has 63 divisors (see below), whose sum is σ = 894914517. Its totient is φ = 197145600.

The previous prime is 421727263. The next prime is 421727297. The reversal of 421727296 is 692727124.

The square root of 421727296 is 20536.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 328334400 + 93392896 = 18120^2 + 9664^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421727297) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2792821 + ... + 2792971.

Almost surely, 2^421727296 is an apocalyptic number.

421727296 is the 20536-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421727296

421727296 is an abundant number, since it is smaller than the sum of its proper divisors (473187221).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421727296 is an equidigital number, since it uses as much as digits as its factorization.

421727296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 170 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The cubic root of 421727296 is about 749.9124614868.

It can be divided in two parts, 4217 and 27296, that added together give a palindrome (31513).

The spelling of 421727296 in words is "four hundred twenty-one million, seven hundred twenty-seven thousand, two hundred ninety-six".