42351966 has 12 divisors (see below), whose sum is σ = 91762632. Its totient is φ = 14117316.

The previous prime is 42351949. The next prime is 42351971. The reversal of 42351966 is 66915324.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42351966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1176426 + ... + 1176461.

It is an arithmetic number, because the mean of its divisors is an integer number (7646886).

Almost surely, 2^42351966 is an apocalyptic number.

42351966 is an abundant number, since it is smaller than the sum of its proper divisors (49410666).

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

42351966 is a wasteful number, since it uses less digits than its factorization.

42351966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352895 (or 2352892 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 42351966 is about 6507.8388117715. The cubic root of 42351966 is about 348.5709513725.

The spelling of 42351966 in words is "forty-two million, three hundred fifty-one thousand, nine hundred sixty-six".