42002646 has 32 divisors (see below), whose sum is σ = 100182528. Its totient is φ = 11478720.

The previous prime is 42002629. The next prime is 42002647. The reversal of 42002646 is 64620024.

42002646 is a modest number, since divided by 2646 gives 42 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002647) 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 15 ways as a sum of consecutive naturals, for example, 20775 + ... + 22706.

It is an arithmetic number, because the mean of its divisors is an integer number (3130704).

Almost surely, 2^42002646 is an apocalyptic number.

42002646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42002646 is an abundant number, since it is smaller than the sum of its proper divisors (58179882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42002646 is a wasteful number, since it uses less digits than its factorization.

42002646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43516.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 42002646 is about 6480.9448385247. The cubic root of 42002646 is about 347.6099639913.

The spelling of 42002646 in words is "forty-two million, two thousand, six hundred forty-six".