1372881 has 8 divisors (see below), whose sum is σ = 1836544. Its totient is φ = 912240.

The previous prime is 1372879. The next prime is 1372913. The reversal of 1372881 is 1882731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1372881 - 2¹ = 1372879 is a prime.

It is a super-2 number, since 2×1372881² = 3769604480322, which contains 22 as substring.

It is a Duffinian number.

1372881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1372081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720 + ... + 1806.

It is an arithmetic number, because the mean of its divisors is an integer number (229568).

2^1372881 is an apocalyptic number.

It is an amenable number.

1372881 is a deficient number, since it is larger than the sum of its proper divisors (463663).

1372881 is a wasteful number, since it uses less digits than its factorization.

1372881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its digits is 2688, while the sum is 30.

The square root of 1372881 is about 1171.7000469403. The cubic root of 1372881 is about 111.1418525680.

The spelling of 1372881 in words is "one million, three hundred seventy-two thousand, eight hundred eighty-one".