1420256367 has 12 divisors (see below), whose sum is σ = 2067636480. Its totient is φ = 939381408.

The previous prime is 1420256339. The next prime is 1420256389. The reversal of 1420256367 is 7636520241.

1420256367 is a `hidden beast` number, since 1 + 42 + 0 + 256 + 367 = 666.

It is not a de Polignac number, because 1420256367 - 2¹⁵ = 1420223599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420256267) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 620142 + ... + 622427.

It is an arithmetic number, because the mean of its divisors is an integer number (172303040).

Almost surely, 2^1420256367 is an apocalyptic number.

1420256367 is a deficient number, since it is larger than the sum of its proper divisors (647380113).

1420256367 is a wasteful number, since it uses less digits than its factorization.

1420256367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242702 (or 1242699 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1420256367 is about 37686.2888462104. The cubic root of 1420256367 is about 1124.0585023669.

The spelling of 1420256367 in words is "one billion, four hundred twenty million, two hundred fifty-six thousand, three hundred sixty-seven".