42987080 has 32 divisors (see below), whose sum is σ = 99843840. Its totient is φ = 16639680.

The previous prime is 42987079. The next prime is 42987097. The reversal of 42987080 is 8078924.

42987080 = T₁₇₆ + T₁₇₇ + ... + T₆₄₀.

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, 16094 + ... + 18573.

It is an arithmetic number, because the mean of its divisors is an integer number (3120120).

Almost surely, 2^42987080 is an apocalyptic number.

42987080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42987080 is an abundant number, since it is smaller than the sum of its proper divisors (56856760).

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

42987080 is a wasteful number, since it uses less digits than its factorization.

42987080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34709 (or 34705 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 42987080 is about 6556.4533095264. The cubic root of 42987080 is about 350.3047142270.

The spelling of 42987080 in words is "forty-two million, nine hundred eighty-seven thousand, eighty".