1478140 has 12 divisors (see below), whose sum is σ = 3104136. Its totient is φ = 591248.

The previous prime is 1478129. The next prime is 1478161. The reversal of 1478140 is 418741.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36934 + ... + 36973.

It is an arithmetic number, because the mean of its divisors is an integer number (258678).

2^1478140 is an apocalyptic number.

1478140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478140 is an abundant number, since it is smaller than the sum of its proper divisors (1625996).

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

1478140 is a wasteful number, since it uses less digits than its factorization.

1478140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73916 (or 73914 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1478140 is about 1215.7878104340. The cubic root of 1478140 is about 113.9126241319.

The spelling of 1478140 in words is "one million, four hundred seventy-eight thousand, one hundred forty".