42928337 has 4 divisors (see below), whose sum is σ = 42948516. Its totient is φ = 42908160.

The previous prime is 42928331. The next prime is 42928339. The reversal of 42928337 is 73382924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31259281 + 11669056 = 5591^2 + 3416^2 .

It is a cyclic number.

It is not a de Polignac number, because 42928337 - 2⁴ = 42928321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42928337.

It is not an unprimeable number, because it can be changed into a prime (42928331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6464 + ... + 11297.

It is an arithmetic number, because the mean of its divisors is an integer number (10737129).

Almost surely, 2^42928337 is an apocalyptic number.

It is an amenable number.

42928337 is a deficient number, since it is larger than the sum of its proper divisors (20179).

42928337 is a wasteful number, since it uses less digits than its factorization.

42928337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20178.

The product of its digits is 72576, while the sum is 38.

The square root of 42928337 is about 6551.9719932246. The cubic root of 42928337 is about 350.1450745524.

The spelling of 42928337 in words is "forty-two million, nine hundred twenty-eight thousand, three hundred thirty-seven".