42187024 has 20 divisors (see below), whose sum is σ = 89168400. Its totient is φ = 19175840.

The previous prime is 42187021. The next prime is 42187031. The reversal of 42187024 is 42078124.

It is a junction number, because it is equal to n+sod(n) for n = 42186983 and 42187001.

It is not an unprimeable number, because it can be changed into a prime (42187021) 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, 119674 + ... + 120025.

It is an arithmetic number, because the mean of its divisors is an integer number (4458420).

Almost surely, 2^42187024 is an apocalyptic number.

42187024 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42187024 is an abundant number, since it is smaller than the sum of its proper divisors (46981376).

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

42187024 is a wasteful number, since it uses less digits than its factorization.

42187024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239718 (or 239712 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 42187024 is about 6495.1538857828. The cubic root of 42187024 is about 348.1178532442.

Subtracting from 42187024 its reverse (42078124), we obtain a square (108900 = 330²).

The spelling of 42187024 in words is "forty-two million, one hundred eighty-seven thousand, twenty-four".