1272270 has 16 divisors (see below), whose sum is σ = 3053520. Its totient is φ = 339264.

The previous prime is 1272269. The next prime is 1272281. The reversal of 1272270 is 722721.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21175 + ... + 21234.

It is an arithmetic number, because the mean of its divisors is an integer number (190845).

2^1272270 is an apocalyptic number.

1272270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272270 is an abundant number, since it is smaller than the sum of its proper divisors (1781250).

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

1272270 is a wasteful number, since it uses less digits than its factorization.

1272270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42419.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 1272270 is about 1127.9494669532. The cubic root of 1272270 is about 108.3576960329.

Adding to 1272270 its reverse (722721), we get a palindrome (1994991).

The spelling of 1272270 in words is "one million, two hundred seventy-two thousand, two hundred seventy".