42840501 has 8 divisors (see below), whose sum is σ = 62313504. Its totient is φ = 25963920.

The previous prime is 42840491. The next prime is 42840517. The reversal of 42840501 is 10504824.

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

It is not a de Polignac number, because 42840501 - 2⁷ = 42840373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42840571) 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, 649066 + ... + 649131.

It is an arithmetic number, because the mean of its divisors is an integer number (7789188).

Almost surely, 2^42840501 is an apocalyptic number.

It is an amenable number.

42840501 is a deficient number, since it is larger than the sum of its proper divisors (19473003).

42840501 is a wasteful number, since it uses less digits than its factorization.

42840501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298211.

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

The square root of 42840501 is about 6545.2655408318. The cubic root of 42840501 is about 349.9060999803.

The spelling of 42840501 in words is "forty-two million, eight hundred forty thousand, five hundred one".