426359581 has 4 divisors (see below), whose sum is σ = 428568892. Its totient is φ = 424150272.

The previous prime is 426359567. The next prime is 426359587. The reversal of 426359581 is 185953624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154604356 + 271755225 = 12434^2 + 16485^2 .

It is a cyclic number.

It is not a de Polignac number, because 426359581 - 2¹³ = 426351389 is a prime.

It is a super-2 number, since 2×426359581² = 363564984620991122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426359587) 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 3 ways as a sum of consecutive naturals, for example, 1104366 + ... + 1104751.

It is an arithmetic number, because the mean of its divisors is an integer number (107142223).

Almost surely, 2^426359581 is an apocalyptic number.

It is an amenable number.

426359581 is a deficient number, since it is larger than the sum of its proper divisors (2209311).

426359581 is a wasteful number, since it uses less digits than its factorization.

426359581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209310.

The product of its digits is 259200, while the sum is 43.

The square root of 426359581 is about 20648.4764813291. The cubic root of 426359581 is about 752.6481680841.

The spelling of 426359581 in words is "four hundred twenty-six million, three hundred fifty-nine thousand, five hundred eighty-one".