426722427 has 24 divisors (see below), whose sum is σ = 647172864. Its totient is φ = 270422064.

The previous prime is 426722407. The next prime is 426722437. The reversal of 426722427 is 724227624.

426722427 is a `hidden beast` number, since 426 + 7 + 224 + 2 + 7 = 666.

It is not a de Polignac number, because 426722427 - 2⁶ = 426722363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426722391 and 426722400.

It is not an unprimeable number, because it can be changed into a prime (426722407) 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 23 ways as a sum of consecutive naturals, for example, 27418 + ... + 40064.

It is an arithmetic number, because the mean of its divisors is an integer number (26965536).

Almost surely, 2^426722427 is an apocalyptic number.

426722427 is a deficient number, since it is larger than the sum of its proper divisors (220450437).

426722427 is a wasteful number, since it uses less digits than its factorization.

426722427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12839 (or 12836 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 426722427 is about 20657.2608784417. The cubic root of 426722427 is about 752.8616169779.

The spelling of 426722427 in words is "four hundred twenty-six million, seven hundred twenty-two thousand, four hundred twenty-seven".