42646501 has 8 divisors (see below), whose sum is σ = 44248320. Its totient is φ = 41053488.

The previous prime is 42646493. The next prime is 42646511. The reversal of 42646501 is 10564624.

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

It is a cyclic number.

It is not a de Polignac number, because 42646501 - 2³ = 42646493 is a prime.

It is a super-4 number, since 4×42646501⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42646501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42646511) 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, 8640 + ... + 12646.

It is an arithmetic number, because the mean of its divisors is an integer number (5531040).

Almost surely, 2^42646501 is an apocalyptic number.

It is an amenable number.

42646501 is a deficient number, since it is larger than the sum of its proper divisors (1601819).

42646501 is a wasteful number, since it uses less digits than its factorization.

42646501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 42646501 is about 6530.4288526865. The cubic root of 42646501 is about 349.3771261803.

The spelling of 42646501 in words is "forty-two million, six hundred forty-six thousand, five hundred one".