1478042 has 4 divisors (see below), whose sum is σ = 2217066. Its totient is φ = 739020.

The previous prime is 1478033. The next prime is 1478047. The reversal of 1478042 is 2408741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1274641 + 203401 = 1129^2 + 451^2 .

It is not an unprimeable number, because it can be changed into a prime (1478047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369509 + ... + 369512.

2^1478042 is an apocalyptic number.

1478042 is a deficient number, since it is larger than the sum of its proper divisors (739024).

1478042 is an equidigital number, since it uses as much as digits as its factorization.

1478042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739023.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1478042 is about 1215.7475066806. The cubic root of 1478042 is about 113.9101066248.

The spelling of 1478042 in words is "one million, four hundred seventy-eight thousand, forty-two".