42450937 has 4 divisors (see below), whose sum is σ = 43146916. Its totient is φ = 41754960.

The previous prime is 42450923. The next prime is 42450973. The reversal of 42450937 is 73905424.

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 24098281 + 18352656 = 4909^2 + 4284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42450937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42450907) 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, 347898 + ... + 348019.

It is an arithmetic number, because the mean of its divisors is an integer number (10786729).

Almost surely, 2^42450937 is an apocalyptic number.

It is an amenable number.

42450937 is a deficient number, since it is larger than the sum of its proper divisors (695979).

42450937 is an equidigital number, since it uses as much as digits as its factorization.

42450937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695978.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 42450937 is about 6515.4383582381. The cubic root of 42450937 is about 348.8422617032.

The spelling of 42450937 in words is "forty-two million, four hundred fifty thousand, nine hundred thirty-seven".