42681280 has 28 divisors (see below), whose sum is σ = 101635560. Its totient is φ = 17072384.

The previous prime is 42681263. The next prime is 42681283. The reversal of 42681280 is 8218624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42681283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66370 + ... + 67009.

Almost surely, 2^42681280 is an apocalyptic number.

42681280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42681280 is an abundant number, since it is smaller than the sum of its proper divisors (58954280).

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

42681280 is a wasteful number, since it uses less digits than its factorization.

42681280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133396 (or 133386 counting only the distinct ones).

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

The square root of 42681280 is about 6533.0911519739. The cubic root of 42681280 is about 349.4720748488.

The spelling of 42681280 in words is "forty-two million, six hundred eighty-one thousand, two hundred eighty".