1271632 has 40 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 582912.

The previous prime is 1271609. The next prime is 1271657. The reversal of 1271632 is 2361721.

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, 14244 + ... + 14332.

It is an arithmetic number, because the mean of its divisors is an integer number (66960).

2^1271632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339200).

1271632 is an abundant number, since it is smaller than the sum of its proper divisors (1406768).

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

1271632 is a wasteful number, since it uses less digits than its factorization.

1271632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 157 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1271632 is about 1127.6666174007. Note that the first 4 decimals coincide. The cubic root of 1271632 is about 108.3395804419.

The spelling of 1271632 in words is "one million, two hundred seventy-one thousand, six hundred thirty-two".