42015024 has 100 divisors (see below), whose sum is σ = 128824344. Its totient is φ = 13174272.

The previous prime is 42015019. The next prime is 42015047. The reversal of 42015024 is 42051024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42014988 and 42015006.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21079 + ... + 22985.

Almost surely, 2^42015024 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 42015024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64412172).

42015024 is an abundant number, since it is smaller than the sum of its proper divisors (86809320).

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

42015024 is a wasteful number, since it uses less digits than its factorization.

42015024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 42015024 is about 6481.8997215323. The cubic root of 42015024 is about 347.6441070271.

Adding to 42015024 its reverse (42051024), we get a palindrome (84066048).

It can be divided in two parts, 4 and 2015024, that added together give a triangular number (2015028 = T₂₀₀₇).

The spelling of 42015024 in words is "forty-two million, fifteen thousand, twenty-four".