442511949 has 32 divisors (see below), whose sum is σ = 667054080. Its totient is φ = 258508800.

The previous prime is 442511947. The next prime is 442511981. The reversal of 442511949 is 949115244.

It is not a de Polignac number, because 442511949 - 2¹ = 442511947 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442511941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313357 + ... + 314765.

It is an arithmetic number, because the mean of its divisors is an integer number (20845440).

Almost surely, 2^442511949 is an apocalyptic number.

It is an amenable number.

442511949 is a deficient number, since it is larger than the sum of its proper divisors (224542131).

442511949 is a wasteful number, since it uses less digits than its factorization.

442511949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761.

The product of its digits is 51840, while the sum is 39.

The square root of 442511949 is about 21035.9679834326. The cubic root of 442511949 is about 762.0351438383.

The spelling of 442511949 in words is "four hundred forty-two million, five hundred eleven thousand, nine hundred forty-nine".