426725239 has 4 divisors (see below), whose sum is σ = 427991824. Its totient is φ = 425458656.

The previous prime is 426725231. The next prime is 426725251. The reversal of 426725239 is 932527624.

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

It is a cyclic number.

It is not a de Polignac number, because 426725239 - 2³ = 426725231 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 (426725231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632787 + ... + 633460.

It is an arithmetic number, because the mean of its divisors is an integer number (106997956).

Almost surely, 2^426725239 is an apocalyptic number.

426725239 is a deficient number, since it is larger than the sum of its proper divisors (1266585).

426725239 is a wasteful number, since it uses less digits than its factorization.

426725239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266584.

The product of its digits is 181440, while the sum is 40.

The square root of 426725239 is about 20657.3289415645. The cubic root of 426725239 is about 752.8632707010.

The spelling of 426725239 in words is "four hundred twenty-six million, seven hundred twenty-five thousand, two hundred thirty-nine".