272428434 has 80 divisors (see below), whose sum is σ = 667408896. Its totient is φ = 82684800.

The previous prime is 272428433. The next prime is 272428439. The reversal of 272428434 is 434824272.

It is not an unprimeable number, because it can be changed into a prime (272428433) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 83779 + ... + 86969.

Almost surely, 2^272428434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272428434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333704448).

272428434 is an abundant number, since it is smaller than the sum of its proper divisors (394980462).

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

272428434 is a wasteful number, since it uses less digits than its factorization.

272428434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253 (or 3244 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 272428434 is about 16505.4062052408. The cubic root of 272428434 is about 648.2623680356.

The spelling of 272428434 in words is "two hundred seventy-two million, four hundred twenty-eight thousand, four hundred thirty-four".