426027509 has 8 divisors (see below), whose sum is σ = 439366488. Its totient is φ = 412784640.

The previous prime is 426027499. The next prime is 426027517. The reversal of 426027509 is 905720624.

It can be written as a sum of positive squares in 4 ways, for example, as 239568484 + 186459025 = 15478^2 + 13655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 426027509 - 2⁴ = 426027493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426027529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14972 + ... + 32805.

It is an arithmetic number, because the mean of its divisors is an integer number (54920811).

Almost surely, 2^426027509 is an apocalyptic number.

It is an amenable number.

426027509 is a deficient number, since it is larger than the sum of its proper divisors (13338979).

426027509 is a wasteful number, since it uses less digits than its factorization.

426027509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48055.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 426027509 is about 20640.4338374948. The cubic root of 426027509 is about 752.4527162410.

The spelling of 426027509 in words is "four hundred twenty-six million, twenty-seven thousand, five hundred nine".