42861280 has 192 divisors, whose sum is σ = 130636800. Its totient is φ = 13171200.

The previous prime is 42861271. The next prime is 42861319. The reversal of 42861280 is 8216824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 603645 + ... + 603715.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^42861280 is an apocalyptic number.

42861280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42861280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65318400).

42861280 is an abundant number, since it is smaller than the sum of its proper divisors (87775520).

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

42861280 is a wasteful number, since it uses less digits than its factorization.

42861280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 42861280 is about 6546.8526789596. The cubic root of 42861280 is about 349.9626626837.

The spelling of 42861280 in words is "forty-two million, eight hundred sixty-one thousand, two hundred eighty".