8425442 has 8 divisors (see below), whose sum is σ = 12845532. Its totient is φ = 4143600.

The previous prime is 8425433. The next prime is 8425447. The reversal of 8425442 is 2445248.

It can be written as a sum of positive squares in 2 ways, for example, as 8014561 + 410881 = 2831^2 + 641^2 .

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

It is not an unprimeable number, because it can be changed into a prime (8425447) 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, 34409 + ... + 34652.

Almost surely, 2^8425442 is an apocalyptic number.

8425442 is a deficient number, since it is larger than the sum of its proper divisors (4420090).

8425442 is a wasteful number, since it uses less digits than its factorization.

8425442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69124.

The product of its digits is 10240, while the sum is 29.

The square root of 8425442 is about 2902.6611927678. The cubic root of 8425442 is about 203.4842959064.

The spelling of 8425442 in words is "eight million, four hundred twenty-five thousand, four hundred forty-two".