42356916 has 36 divisors (see below), whose sum is σ = 122365152. Its totient is φ = 12101904.

The previous prime is 42356891. The next prime is 42356921. The reversal of 42356916 is 61965324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83790 + ... + 84293.

It is an arithmetic number, because the mean of its divisors is an integer number (3399032).

Almost surely, 2^42356916 is an apocalyptic number.

It is an amenable number.

42356916 is an abundant number, since it is smaller than the sum of its proper divisors (80008236).

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

42356916 is a wasteful number, since it uses less digits than its factorization.

42356916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168100 (or 168095 counting only the distinct ones).

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

The square root of 42356916 is about 6508.2191112469. The cubic root of 42356916 is about 348.5845308995.

The spelling of 42356916 in words is "forty-two million, three hundred fifty-six thousand, nine hundred sixteen".