1277472 has 48 divisors (see below), whose sum is σ = 3834432. Its totient is φ = 364800.

The previous prime is 1277461. The next prime is 1277477. The reversal of 1277472 is 2747721.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1277477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (79884).

2^1277472 is an apocalyptic number.

1277472 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 1277472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1917216).

1277472 is an abundant number, since it is smaller than the sum of its proper divisors (2556960).

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

1277472 is a wasteful number, since it uses less digits than its factorization.

1277472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1913 counting only the distinct ones).

The product of its digits is 5488, while the sum is 30.

The square root of 1277472 is about 1130.2530690071. The cubic root of 1277472 is about 108.5051778907.

The spelling of 1277472 in words is "one million, two hundred seventy-seven thousand, four hundred seventy-two".