426071421 has 20 divisors (see below), whose sum is σ = 638202400. Its totient is φ = 283277736.

The previous prime is 426071419. The next prime is 426071431. The reversal of 426071421 is 124170624.

426071421 is a `hidden beast` number, since 42 + 607 + 14 + 2 + 1 = 666.

It is not a de Polignac number, because 426071421 - 2¹ = 426071419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426071431) 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 19 ways as a sum of consecutive naturals, for example, 23760 + ... + 37638.

It is an arithmetic number, because the mean of its divisors is an integer number (31910120).

Almost surely, 2^426071421 is an apocalyptic number.

It is an amenable number.

426071421 is a deficient number, since it is larger than the sum of its proper divisors (212130979).

426071421 is a wasteful number, since it uses less digits than its factorization.

426071421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14270 (or 14261 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 426071421 is about 20641.4975474165. The cubic root of 426071421 is about 752.4785679116.

The spelling of 426071421 in words is "four hundred twenty-six million, seventy-one thousand, four hundred twenty-one".