426545426 has 4 divisors (see below), whose sum is σ = 639818142. Its totient is φ = 213272712.

The previous prime is 426545407. The next prime is 426545443. The reversal of 426545426 is 624545624.

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

It can be written as a sum of positive squares in only one way, i.e., 328515625 + 98029801 = 18125^2 + 9901^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 426545426.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106636355 + ... + 106636358.

Almost surely, 2^426545426 is an apocalyptic number.

426545426 is a deficient number, since it is larger than the sum of its proper divisors (213272716).

426545426 is a wasteful number, since it uses less digits than its factorization.

426545426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213272715.

The product of its digits is 230400, while the sum is 38.

The square root of 426545426 is about 20652.9762019908. The cubic root of 426545426 is about 752.7575089524.

The spelling of 426545426 in words is "four hundred twenty-six million, five hundred forty-five thousand, four hundred twenty-six".