425646346 has 4 divisors (see below), whose sum is σ = 638469522. Its totient is φ = 212823172.

The previous prime is 425646317. The next prime is 425646359. The reversal of 425646346 is 643646524.

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., 347412321 + 78234025 = 18639^2 + 8845^2 .

It is a junction number, because it is equal to n+sod(n) for n = 425646299 and 425646308.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106411585 + ... + 106411588.

Almost surely, 2^425646346 is an apocalyptic number.

425646346 is a deficient number, since it is larger than the sum of its proper divisors (212823176).

425646346 is a wasteful number, since it uses less digits than its factorization.

425646346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212823175.

The product of its digits is 414720, while the sum is 40.

The square root of 425646346 is about 20631.1983655822. The cubic root of 425646346 is about 752.2282450463.

The spelling of 425646346 in words is "four hundred twenty-five million, six hundred forty-six thousand, three hundred forty-six".