42661002 has 8 divisors (see below), whose sum is σ = 85322016. Its totient is φ = 14220332.

The previous prime is 42660983. The next prime is 42661039. The reversal of 42661002 is 20016624.

It is a happy number.

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

42661002 is an admirable number.

It is a super-2 number, since 2×42661002² = 3639922183288008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42661002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3555078 + ... + 3555089.

It is an arithmetic number, because the mean of its divisors is an integer number (10665252).

Almost surely, 2^42661002 is an apocalyptic number.

42661002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42661002 is a wasteful number, since it uses less digits than its factorization.

42661002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7110172.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42661002 is about 6531.5390223132. The cubic root of 42661002 is about 349.4167210159.

Adding to 42661002 its reverse (20016624), we get a palindrome (62677626).

The spelling of 42661002 in words is "forty-two million, six hundred sixty-one thousand, two".