1378700 has 36 divisors (see below), whose sum is σ = 3171672. Its totient is φ = 518400.

The previous prime is 1378691. The next prime is 1378703. The reversal of 1378700 is 78731.

It is a self number, because there is not a number n which added to its sum of digits gives 1378700.

It is not an unprimeable number, because it can be changed into a prime (1378703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1295 + ... + 2105.

It is an arithmetic number, because the mean of its divisors is an integer number (88102).

2^1378700 is an apocalyptic number.

1378700 is a gapful number since it is divisible by the number (10) 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 1378700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585836).

1378700 is an abundant number, since it is smaller than the sum of its proper divisors (1792972).

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

1378700 is a wasteful number, since it uses less digits than its factorization.

1378700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1378700 is about 1174.1805653306. The cubic root of 1378700 is about 111.2986573337.

The spelling of 1378700 in words is "one million, three hundred seventy-eight thousand, seven hundred".