1378832 has 40 divisors (see below), whose sum is σ = 3291456. Its totient is φ = 544896.

The previous prime is 1378831. The next prime is 1378841. The reversal of 1378832 is 2388731.

It is a d-powerful number, because it can be written as 1 + 3⁹ + 7⁷ + 8² + 8⁴ + 3¹² + 2² .

It is not an unprimeable number, because it can be changed into a prime (1378831) 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, 983 + ... + 1929.

2^1378832 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 1378832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645728).

1378832 is an abundant number, since it is smaller than the sum of its proper divisors (1912624).

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

1378832 is a wasteful number, since it uses less digits than its factorization.

1378832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 969 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 1378832 is about 1174.2367733979. The cubic root of 1378832 is about 111.3022092193.

The spelling of 1378832 in words is "one million, three hundred seventy-eight thousand, eight hundred thirty-two".