426403642 has 8 divisors (see below), whose sum is σ = 730977696. Its totient is φ = 182744412.

The previous prime is 426403633. The next prime is 426403657. The reversal of 426403642 is 246304624.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15228688 + ... + 15228715.

It is an arithmetic number, because the mean of its divisors is an integer number (91372212).

Almost surely, 2^426403642 is an apocalyptic number.

426403642 is a deficient number, since it is larger than the sum of its proper divisors (304574054).

426403642 is a wasteful number, since it uses less digits than its factorization.

426403642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30457412.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 426403642 is about 20649.5433847821. The cubic root of 426403642 is about 752.6740940006.

The spelling of 426403642 in words is "four hundred twenty-six million, four hundred three thousand, six hundred forty-two".