1478940 has 36 divisors (see below), whose sum is σ = 4167576. Its totient is φ = 391872.

The previous prime is 1478933. The next prime is 1478947. The reversal of 1478940 is 498741.

It is an interprime number because it is at equal distance from previous prime (1478933) and next prime (1478947).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478947) 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, 9342 + ... + 9498.

It is an arithmetic number, because the mean of its divisors is an integer number (115766).

2^1478940 is an apocalyptic number.

1478940 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 1478940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2083788).

1478940 is an abundant number, since it is smaller than the sum of its proper divisors (2688636).

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

1478940 is a wasteful number, since it uses less digits than its factorization.

1478940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1478940 is about 1216.1167707091. The cubic root of 1478940 is about 113.9331710498.

The spelling of 1478940 in words is "one million, four hundred seventy-eight thousand, nine hundred forty".