1377012 has 72 divisors (see below), whose sum is σ = 4017216. Its totient is φ = 359424.

The previous prime is 1376981. The next prime is 1377023. The reversal of 1377012 is 2107731.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1377012.

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, 14148 + ... + 14244.

2^1377012 is an apocalyptic number.

1377012 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 1377012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2008608).

1377012 is an abundant number, since it is smaller than the sum of its proper divisors (2640204).

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

1377012 is a wasteful number, since it uses less digits than its factorization.

1377012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 1377012 is about 1173.4615460253. The cubic root of 1377012 is about 111.2532162518.

The spelling of 1377012 in words is "one million, three hundred seventy-seven thousand, twelve".