42541816 has 32 divisors (see below), whose sum is σ = 81849600. Its totient is φ = 20723040.

The previous prime is 42541801. The next prime is 42541841. The reversal of 42541816 is 61814524.

It is a super-2 number, since 2×42541816² = 3619612217155712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 52051 + ... + 52861.

It is an arithmetic number, because the mean of its divisors is an integer number (2557800).

Almost surely, 2^42541816 is an apocalyptic number.

It is an amenable number.

42541816 is a deficient number, since it is larger than the sum of its proper divisors (39307784).

42541816 is a wasteful number, since it uses less digits than its factorization.

42541816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 975 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 42541816 is about 6522.4087575067. The cubic root of 42541816 is about 349.0910182061.

The spelling of 42541816 in words is "forty-two million, five hundred forty-one thousand, eight hundred sixteen".