426263769 has 8 divisors (see below), whose sum is σ = 631501920. Its totient is φ = 284175828.

The previous prime is 426263767. The next prime is 426263777. The reversal of 426263769 is 967362624.

426263769 is a `hidden beast` number, since 4 + 2 + 6 + 2 + 637 + 6 + 9 = 666.

It is not a de Polignac number, because 426263769 - 2¹ = 426263767 is a prime.

It is a super-2 number, since 2×426263769² = 363401601524170722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (426263767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7893747 + ... + 7893800.

It is an arithmetic number, because the mean of its divisors is an integer number (78937740).

Almost surely, 2^426263769 is an apocalyptic number.

It is an amenable number.

426263769 is a deficient number, since it is larger than the sum of its proper divisors (205238151).

426263769 is a wasteful number, since it uses less digits than its factorization.

426263769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15787556 (or 15787550 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 426263769 is about 20646.1562766535. The cubic root of 426263769 is about 752.5917852155.

The spelling of 426263769 in words is "four hundred twenty-six million, two hundred sixty-three thousand, seven hundred sixty-nine".