44142667 has 4 divisors (see below), whose sum is σ = 45566656. Its totient is φ = 42718680.

The previous prime is 44142661. The next prime is 44142689. The reversal of 44142667 is 76624144.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44142667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44142661) 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, 711948 + ... + 712009.

It is an arithmetic number, because the mean of its divisors is an integer number (11391664).

Almost surely, 2^44142667 is an apocalyptic number.

44142667 is a deficient number, since it is larger than the sum of its proper divisors (1423989).

44142667 is a wasteful number, since it uses less digits than its factorization.

44142667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423988.

The product of its digits is 32256, while the sum is 34.

The square root of 44142667 is about 6643.9948073429. The cubic root of 44142667 is about 353.4159856681.

The spelling of 44142667 in words is "forty-four million, one hundred forty-two thousand, six hundred sixty-seven".