425638274 has 4 divisors (see below), whose sum is σ = 638457414. Its totient is φ = 212819136.

The previous prime is 425638237. The next prime is 425638289. The reversal of 425638274 is 472836524.

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., 280797049 + 144841225 = 16757^2 + 12035^2 .

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106409567 + ... + 106409570.

Almost surely, 2^425638274 is an apocalyptic number.

425638274 is a deficient number, since it is larger than the sum of its proper divisors (212819140).

425638274 is a wasteful number, since it uses less digits than its factorization.

425638274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212819139.

The product of its digits is 322560, while the sum is 41.

The square root of 425638274 is about 20631.0027385971. The cubic root of 425638274 is about 752.2234899056.

The spelling of 425638274 in words is "four hundred twenty-five million, six hundred thirty-eight thousand, two hundred seventy-four".