42516720 has 60 divisors (see below), whose sum is σ = 142787736. Its totient is φ = 11337600.

The previous prime is 42516709. The next prime is 42516743. The reversal of 42516720 is 2761524.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28806 + ... + 30245.

Almost surely, 2^42516720 is an apocalyptic number.

42516720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42516720 is an abundant number, since it is smaller than the sum of its proper divisors (100271016).

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

42516720 is a wasteful number, since it uses less digits than its factorization.

42516720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59070 (or 59061 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 42516720 is about 6520.4846445644. The cubic root of 42516720 is about 349.0223601791.

The spelling of 42516720 in words is "forty-two million, five hundred sixteen thousand, seven hundred twenty".