42740560 has 40 divisors (see below), whose sum is σ = 99848520. Its totient is φ = 17014272.

The previous prime is 42740549. The next prime is 42740591. The reversal of 42740560 is 6504724.

It can be written as a sum of positive squares in 4 ways, for example, as 9884736 + 32855824 = 3144^2 + 5732^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×42740560² = 3653510938227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17154 + ... + 19486.

It is an arithmetic number, because the mean of its divisors is an integer number (2496213).

Almost surely, 2^42740560 is an apocalyptic number.

42740560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42740560 is an abundant number, since it is smaller than the sum of its proper divisors (57107960).

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

42740560 is a wasteful number, since it uses less digits than its factorization.

42740560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 42740560 is about 6537.6264806121. The cubic root of 42740560 is about 349.6337938417.

The spelling of 42740560 in words is "forty-two million, seven hundred forty thousand, five hundred sixty".