42308556 has 48 divisors (see below), whose sum is σ = 102156768. Its totient is φ = 13619200.

The previous prime is 42308551. The next prime is 42308561. The reversal of 42308556 is 65580324.

It is an interprime number because it is at equal distance from previous prime (42308551) and next prime (42308561).

It is not an unprimeable number, because it can be changed into a prime (42308551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55216 + ... + 55976.

It is an arithmetic number, because the mean of its divisors is an integer number (2128266).

Almost surely, 2^42308556 is an apocalyptic number.

It is an amenable number.

42308556 is an abundant number, since it is smaller than the sum of its proper divisors (59848212).

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

42308556 is a wasteful number, since it uses less digits than its factorization.

42308556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 42308556 is about 6504.5027480969. The cubic root of 42308556 is about 348.4518176840.

The spelling of 42308556 in words is "forty-two million, three hundred eight thousand, five hundred fifty-six".