1378494 has 48 divisors (see below), whose sum is σ = 3315312. Its totient is φ = 411264.

The previous prime is 1378441. The next prime is 1378499. The reversal of 1378494 is 4948731.

It is a happy number.

It is a super-3 number, since 3×1378494³ = 7858431921160133352, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9994 + ... + 10130.

It is an arithmetic number, because the mean of its divisors is an integer number (69069).

2^1378494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657656).

1378494 is an abundant number, since it is smaller than the sum of its proper divisors (1936818).

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

1378494 is a wasteful number, since it uses less digits than its factorization.

1378494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 198 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1378494 is about 1174.0928413034. The cubic root of 1378494 is about 111.2931137865.

The spelling of 1378494 in words is "one million, three hundred seventy-eight thousand, four hundred ninety-four".