42540801 has 8 divisors (see below), whose sum is σ = 56773824. Its totient is φ = 28334160.

The previous prime is 42540793. The next prime is 42540833. The reversal of 42540801 is 10804524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42540801 - 2³ = 42540793 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42540101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2461 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (7096728).

Almost surely, 2^42540801 is an apocalyptic number.

It is an amenable number.

42540801 is a deficient number, since it is larger than the sum of its proper divisors (14233023).

42540801 is a wasteful number, since it uses less digits than its factorization.

42540801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13191.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 42540801 is about 6522.3309483650. The cubic root of 42540801 is about 349.0882418774.

The spelling of 42540801 in words is "forty-two million, five hundred forty thousand, eight hundred one".