1277406 has 48 divisors (see below), whose sum is σ = 3066336. Its totient is φ = 381888.

The previous prime is 1277387. The next prime is 1277429. The reversal of 1277406 is 6047721.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1277406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12351 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (63882).

2^1277406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1277406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1533168).

1277406 is an abundant number, since it is smaller than the sum of its proper divisors (1788930).

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

1277406 is a wasteful number, since it uses less digits than its factorization.

1277406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1277406 is about 1130.2238716290. The cubic root of 1277406 is about 108.5033092353.

The spelling of 1277406 in words is "one million, two hundred seventy-seven thousand, four hundred six".