42437091 has 8 divisors (see below), whose sum is σ = 57963024. Its totient is φ = 27601280.

The previous prime is 42437077. The next prime is 42437119. The reversal of 42437091 is 19073424.

It is a happy number.

42437091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42437091 - 2⁶ = 42437027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42437891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172386 + ... + 172631.

It is an arithmetic number, because the mean of its divisors is an integer number (7245378).

Almost surely, 2^42437091 is an apocalyptic number.

42437091 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42437091 is a deficient number, since it is larger than the sum of its proper divisors (15525933).

42437091 is a wasteful number, since it uses less digits than its factorization.

42437091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345061.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 42437091 is about 6514.3757183632. The cubic root of 42437091 is about 348.8043308939.

The spelling of 42437091 in words is "forty-two million, four hundred thirty-seven thousand, ninety-one".