426713642 has 4 divisors (see below), whose sum is σ = 640070466. Its totient is φ = 213356820.

The previous prime is 426713633. The next prime is 426713663. The reversal of 426713642 is 246317624.

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., 403567921 + 23145721 = 20089^2 + 4811^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106678409 + ... + 106678412.

Almost surely, 2^426713642 is an apocalyptic number.

426713642 is a deficient number, since it is larger than the sum of its proper divisors (213356824).

426713642 is a wasteful number, since it uses less digits than its factorization.

426713642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213356823.

The product of its digits is 48384, while the sum is 35.

The square root of 426713642 is about 20657.0482402496. The cubic root of 426713642 is about 752.8564505166.

The spelling of 426713642 in words is "four hundred twenty-six million, seven hundred thirteen thousand, six hundred forty-two".