425834638 has 8 divisors (see below), whose sum is σ = 639532440. Its totient is φ = 212657160.

The previous prime is 425834561. The next prime is 425834639. The reversal of 425834638 is 836438524.

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

It is a junction number, because it is equal to n+sod(n) for n = 425834594 and 425834603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425834639) 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, 128028 + ... + 131311.

It is an arithmetic number, because the mean of its divisors is an integer number (79941555).

Almost surely, 2^425834638 is an apocalyptic number.

425834638 is a deficient number, since it is larger than the sum of its proper divisors (213697802).

425834638 is a wasteful number, since it uses less digits than its factorization.

425834638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260162.

The product of its digits is 552960, while the sum is 43.

The square root of 425834638 is about 20635.7611441885. The cubic root of 425834638 is about 752.3391490724.

The spelling of 425834638 in words is "four hundred twenty-five million, eight hundred thirty-four thousand, six hundred thirty-eight".