42060915 has 24 divisors (see below), whose sum is σ = 78514800. Its totient is φ = 20706624.

The previous prime is 42060913. The next prime is 42060919. The reversal of 42060915 is 51906024.

42060915 is a `hidden beast` number, since 42 + 0 + 609 + 15 = 666.

It is not a de Polignac number, because 42060915 - 2¹ = 42060913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42060913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35365 + ... + 36534.

It is an arithmetic number, because the mean of its divisors is an integer number (3271450).

Almost surely, 2^42060915 is an apocalyptic number.

42060915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42060915 is a deficient number, since it is larger than the sum of its proper divisors (36453885).

42060915 is a wasteful number, since it uses less digits than its factorization.

42060915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71923 (or 71920 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 42060915 is about 6485.4386898652. The cubic root of 42060915 is about 347.7706326460.

Adding to 42060915 its reverse (51906024), we get a palindrome (93966939).

The spelling of 42060915 in words is "forty-two million, sixty thousand, nine hundred fifteen".