1478144 has 20 divisors (see below), whose sum is σ = 2954424. Its totient is φ = 738816.

The previous prime is 1478129. The next prime is 1478161. The reversal of 1478144 is 4418741.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932 + ... + 1955.

2^1478144 is an apocalyptic number.

It is an amenable number.

1478144 is a deficient number, since it is larger than the sum of its proper divisors (1476280).

1478144 is an frugal number, since it uses more digits than its factorization.

1478144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905 (or 2889 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 1478144 is about 1215.7894554568. The cubic root of 1478144 is about 113.9127268849.

The spelling of 1478144 in words is "one million, four hundred seventy-eight thousand, one hundred forty-four".