42546937 has 4 divisors (see below), whose sum is σ = 45049716. Its totient is φ = 40044160.

The previous prime is 42546901. The next prime is 42546949. The reversal of 42546937 is 73964524.

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 26378496 + 16168441 = 5136^2 + 4021^2 .

It is a cyclic number.

It is not a de Polignac number, because 42546937 - 2¹⁵ = 42514169 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 42546937.

It is not an unprimeable number, because it can be changed into a prime (42546967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251364 + ... + 1251397.

It is an arithmetic number, because the mean of its divisors is an integer number (11262429).

Almost surely, 2^42546937 is an apocalyptic number.

It is an amenable number.

42546937 is a deficient number, since it is larger than the sum of its proper divisors (2502779).

42546937 is a wasteful number, since it uses less digits than its factorization.

42546937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502778.

The product of its digits is 181440, while the sum is 40.

The square root of 42546937 is about 6522.8013153859. The cubic root of 42546937 is about 349.1050250003.

The spelling of 42546937 in words is "forty-two million, five hundred forty-six thousand, nine hundred thirty-seven".