1425478 has 4 divisors (see below), whose sum is σ = 2138220. Its totient is φ = 712738.

The previous prime is 1425469. The next prime is 1425481. The reversal of 1425478 is 8745241.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356368 + ... + 356371.

It is an arithmetic number, because the mean of its divisors is an integer number (534555).

2^1425478 is an apocalyptic number.

1425478 is a deficient number, since it is larger than the sum of its proper divisors (712742).

1425478 is an equidigital number, since it uses as much as digits as its factorization.

1425478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712741.

The product of its digits is 8960, while the sum is 31.

The square root of 1425478 is about 1193.9338340126. The cubic root of 1425478 is about 112.5434367247.

The spelling of 1425478 in words is "one million, four hundred twenty-five thousand, four hundred seventy-eight".