426396309 has 16 divisors (see below), whose sum is σ = 619089600. Its totient is φ = 260015616.

The previous prime is 426396301. The next prime is 426396319. The reversal of 426396309 is 903693624.

It is not a de Polignac number, because 426396309 - 2³ = 426396301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426396301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127324 + ... + 130629.

It is an arithmetic number, because the mean of its divisors is an integer number (38693100).

Almost surely, 2^426396309 is an apocalyptic number.

It is an amenable number.

426396309 is a deficient number, since it is larger than the sum of its proper divisors (192693291).

426396309 is a wasteful number, since it uses less digits than its factorization.

426396309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258004.

The product of its (nonzero) digits is 209952, while the sum is 42.

The square root of 426396309 is about 20649.3658256131. The cubic root of 426396309 is about 752.6697793167.

The spelling of 426396309 in words is "four hundred twenty-six million, three hundred ninety-six thousand, three hundred nine".