42030615 has 16 divisors (see below), whose sum is σ = 73362816. Its totient is φ = 20378400.

The previous prime is 42030601. The next prime is 42030623. The reversal of 42030615 is 51603024.

It is a happy number.

It is not a de Polignac number, because 42030615 - 2⁷ = 42030487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42030591 and 42030600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127201 + ... + 127530.

It is an arithmetic number, because the mean of its divisors is an integer number (4585176).

Almost surely, 2^42030615 is an apocalyptic number.

42030615 is a deficient number, since it is larger than the sum of its proper divisors (31332201).

42030615 is a wasteful number, since it uses less digits than its factorization.

42030615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254750.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 42030615 is about 6483.1022666622. The cubic root of 42030615 is about 347.6871031466.

Adding to 42030615 its reverse (51603024), we get a palindrome (93633639).

The spelling of 42030615 in words is "forty-two million, thirty thousand, six hundred fifteen".