425908838 has 4 divisors (see below), whose sum is σ = 638863260. Its totient is φ = 212954418.

The previous prime is 425908823. The next prime is 425908849. The reversal of 425908838 is 838809524.

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

It is a junction number, because it is equal to n+sod(n) for n = 425908792 and 425908801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106477208 + ... + 106477211.

It is an arithmetic number, because the mean of its divisors is an integer number (159715815).

Almost surely, 2^425908838 is an apocalyptic number.

425908838 is a deficient number, since it is larger than the sum of its proper divisors (212954422).

425908838 is a wasteful number, since it uses less digits than its factorization.

425908838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212954421.

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 425908838 is about 20637.5589157245. The cubic root of 425908838 is about 752.3828439075.

The spelling of 425908838 in words is "four hundred twenty-five million, nine hundred eight thousand, eight hundred thirty-eight".