42472170 has 96 divisors (see below), whose sum is σ = 122863104. Its totient is φ = 10108800.

The previous prime is 42472169. The next prime is 42472247. The reversal of 42472170 is 7127424.

It is a happy number.

42472170 is a `hidden beast` number, since 424 + 72 + 170 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35685 + ... + 36855.

It is an arithmetic number, because the mean of its divisors is an integer number (1279824).

Almost surely, 2^42472170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42472170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61431552).

42472170 is an abundant number, since it is smaller than the sum of its proper divisors (80390934).

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

42472170 is a wasteful number, since it uses less digits than its factorization.

42472170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 42472170 is about 6517.0675921000. The cubic root of 42472170 is about 348.9004130160.

Adding to 42472170 its reverse (7127424), we get a palindrome (49599594).

The spelling of 42472170 in words is "forty-two million, four hundred seventy-two thousand, one hundred seventy".