1270272 has 40 divisors (see below), whose sum is σ = 3388176. Its totient is φ = 422912.
The previous prime is 1270271. The next prime is 1270279. The reversal of 1270272 is 2720721.
It is a super-2 number, since 2×12702722 = 3227181907968, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1270271) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123 + ... + 1949.
21270272 is an apocalyptic number.
1270272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1270272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694088).
1270272 is an abundant number, since it is smaller than the sum of its proper divisors (2117904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1270272 is an frugal number, since it uses more digits than its factorization.
1270272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 848 (or 832 counting only the distinct ones).
The product of its (nonzero) digits is 392, while the sum is 21.
The square root of 1270272 is about 1127.0634409828. The cubic root of 1270272 is about 108.3009439004.
Adding to 1270272 its reverse (2720721), we get a palindrome (3990993).
The spelling of 1270272 in words is "one million, two hundred seventy thousand, two hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •