42425472 has 128 divisors (see below), whose sum is σ = 122351040. Its totient is φ = 12976128.

The previous prime is 42425459. The next prime is 42425491. The reversal of 42425472 is 27452424.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437328 + ... + 437424.

Almost surely, 2^42425472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42425472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61175520).

42425472 is an abundant number, since it is smaller than the sum of its proper divisors (79925568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42425472 is a wasteful number, since it uses less digits than its factorization.

42425472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 186 counting only the distinct ones).

The product of its digits is 17920, while the sum is 30.

The square root of 42425472 is about 6513.4838604237. The cubic root of 42425472 is about 348.7724945345.

Adding to 42425472 its reverse (27452424), we get a palindrome (69877896).

The spelling of 42425472 in words is "forty-two million, four hundred twenty-five thousand, four hundred seventy-two".