42604651 has 4 divisors (see below), whose sum is σ = 42827904. Its totient is φ = 42381400.

The previous prime is 42604637. The next prime is 42604673. The reversal of 42604651 is 15640624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42604651 - 2¹¹ = 42602603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42604691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111340 + ... + 111721.

It is an arithmetic number, because the mean of its divisors is an integer number (10706976).

Almost surely, 2^42604651 is an apocalyptic number.

42604651 is a deficient number, since it is larger than the sum of its proper divisors (223253).

42604651 is a wasteful number, since it uses less digits than its factorization.

42604651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223252.

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

The square root of 42604651 is about 6527.2238355981. The cubic root of 42604651 is about 349.2628048192.

It can be divided in two parts, 4260 and 4651, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 42604651 in words is "forty-two million, six hundred four thousand, six hundred fifty-one".