42488172 has 48 divisors (see below), whose sum is σ = 110769120. Its totient is φ = 14083776.

The previous prime is 42488167. The next prime is 42488183. The reversal of 42488172 is 27188424.

42488172 is a `hidden beast` number, since 4 + 2 + 488 + 172 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 20278 + ... + 22274.

It is an arithmetic number, because the mean of its divisors is an integer number (2307690).

Almost surely, 2^42488172 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 42488172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55384560).

42488172 is an abundant number, since it is smaller than the sum of its proper divisors (68280948).

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

42488172 is a wasteful number, since it uses less digits than its factorization.

42488172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2199 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 42488172 is about 6518.2951758876. The cubic root of 42488172 is about 348.9442252613.

The spelling of 42488172 in words is "forty-two million, four hundred eighty-eight thousand, one hundred seventy-two".