42620516 has 12 divisors (see below), whose sum is σ = 74714220. Its totient is φ = 21273600.

The previous prime is 42620507. The next prime is 42620527. The reversal of 42620516 is 61502624.

It can be written as a sum of positive squares in 2 ways, for example, as 32444416 + 10176100 = 5696^2 + 3190^2 .

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 3 ways as a sum of consecutive naturals, for example, 6461 + ... + 11268.

It is an arithmetic number, because the mean of its divisors is an integer number (6226185).

Almost surely, 2^42620516 is an apocalyptic number.

It is an amenable number.

42620516 is a deficient number, since it is larger than the sum of its proper divisors (32093704).

42620516 is a wasteful number, since it uses less digits than its factorization.

42620516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18334 (or 18332 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 42620516 is about 6528.4390171005. The cubic root of 42620516 is about 349.3061519392.

The spelling of 42620516 in words is "forty-two million, six hundred twenty thousand, five hundred sixteen".