425632442 has 8 divisors (see below), whose sum is σ = 639416532. Its totient is φ = 212493600.

The previous prime is 425632421. The next prime is 425632469. The reversal of 425632442 is 244236524.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 410508121 + 15124321 = 20261^2 + 3889^2 .

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 = 425632399 and 425632408.

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, 159659 + ... + 162302.

Almost surely, 2^425632442 is an apocalyptic number.

425632442 is a deficient number, since it is larger than the sum of its proper divisors (213784090).

425632442 is a wasteful number, since it uses less digits than its factorization.

425632442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322624.

The product of its digits is 46080, while the sum is 32.

The square root of 425632442 is about 20630.8613974308. The cubic root of 425632442 is about 752.2200542908.

Adding to 425632442 its reverse (244236524), we get a palindrome (669868966).

The spelling of 425632442 in words is "four hundred twenty-five million, six hundred thirty-two thousand, four hundred forty-two".