1420256074 has 4 divisors (see below), whose sum is σ = 2130384114. Its totient is φ = 710128036.

The previous prime is 1420256059. The next prime is 1420256153. The reversal of 1420256074 is 4706520241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4706520241 = 16823 ⋅279767.

It can be written as a sum of positive squares in only one way, i.e., 829036849 + 591219225 = 28793^2 + 24315^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355064017 + ... + 355064020.

Almost surely, 2^1420256074 is an apocalyptic number.

1420256074 is a deficient number, since it is larger than the sum of its proper divisors (710128040).

1420256074 is an equidigital number, since it uses as much as digits as its factorization.

1420256074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710128039.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1420256074 is about 37686.2849588547. The cubic root of 1420256074 is about 1124.0584250689.

The spelling of 1420256074 in words is "one billion, four hundred twenty million, two hundred fifty-six thousand, seventy-four".