1425234478 has 8 divisors (see below), whose sum is σ = 2147439168. Its totient is φ = 709421424.

The previous prime is 1425234469. The next prime is 1425234511. The reversal of 1425234478 is 8744325241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1425234478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597351 + ... + 1598242.

It is an arithmetic number, because the mean of its divisors is an integer number (268429896).

Almost surely, 2^1425234478 is an apocalyptic number.

1425234478 is a deficient number, since it is larger than the sum of its proper divisors (722204690).

1425234478 is a wasteful number, since it uses less digits than its factorization.

1425234478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195818.

The product of its digits is 215040, while the sum is 40.

The square root of 1425234478 is about 37752.2777855853. The cubic root of 1425234478 is about 1125.3702756143.

The spelling of 1425234478 in words is "one billion, four hundred twenty-five million, two hundred thirty-four thousand, four hundred seventy-eight".