426344505 has 16 divisors (see below), whose sum is σ = 682845120. Its totient is φ = 227152448.

The previous prime is 426344489. The next prime is 426344507. The reversal of 426344505 is 505443624.

It is a cyclic number.

It is not a de Polignac number, because 426344505 - 2⁴ = 426344489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426344507) 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, 1339 + ... + 29231.

It is an arithmetic number, because the mean of its divisors is an integer number (42677820).

Almost surely, 2^426344505 is an apocalyptic number.

It is an amenable number.

426344505 is a deficient number, since it is larger than the sum of its proper divisors (256500615).

426344505 is a wasteful number, since it uses less digits than its factorization.

426344505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28920.

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 426344505 is about 20648.1114148486. Note that the first 3 decimals coincide. The cubic root of 426344505 is about 752.6392968105.

The spelling of 426344505 in words is "four hundred twenty-six million, three hundred forty-four thousand, five hundred five".