42601999 has 8 divisors (see below), whose sum is σ = 46557648. Its totient is φ = 38660160.

The previous prime is 42601987. The next prime is 42602033. The reversal of 42601999 is 99910624.

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

It is not a de Polignac number, because 42601999 - 2¹³ = 42593807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42601919) 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 7 ways as a sum of consecutive naturals, for example, 3649 + ... + 9925.

It is an arithmetic number, because the mean of its divisors is an integer number (5819706).

Almost surely, 2^42601999 is an apocalyptic number.

42601999 is a deficient number, since it is larger than the sum of its proper divisors (3955649).

42601999 is a wasteful number, since it uses less digits than its factorization.

42601999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 42601999 is about 6527.0206832827. The cubic root of 42601999 is about 349.2555578469.

The spelling of 42601999 in words is "forty-two million, six hundred one thousand, nine hundred ninety-nine".