426664545 has 8 divisors (see below), whose sum is σ = 682663296. Its totient is φ = 227554416.

The previous prime is 426664541. The next prime is 426664547. The reversal of 426664545 is 545466624.

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

It is not a de Polignac number, because 426664545 - 2² = 426664541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 426664497 and 426664506.

It is not an unprimeable number, because it can be changed into a prime (426664541) 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, 14222137 + ... + 14222166.

It is an arithmetic number, because the mean of its divisors is an integer number (85332912).

Almost surely, 2^426664545 is an apocalyptic number.

It is an amenable number.

426664545 is a deficient number, since it is larger than the sum of its proper divisors (255998751).

426664545 is a wasteful number, since it uses less digits than its factorization.

426664545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28444311.

The product of its digits is 691200, while the sum is 42.

The square root of 426664545 is about 20655.8598223361. The cubic root of 426664545 is about 752.8275752498.

The spelling of 426664545 in words is "four hundred twenty-six million, six hundred sixty-four thousand, five hundred forty-five".