442006452 has 36 divisors (see below), whose sum is σ = 1119998880. Its totient is φ = 146978832.

The previous prime is 442006451. The next prime is 442006483. The reversal of 442006452 is 254600244.

442006452 is a `hidden beast` number, since 4 + 4 + 200 + 6 + 452 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442006451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433 + ... + 29735.

It is an arithmetic number, because the mean of its divisors is an integer number (31111080).

Almost surely, 2^442006452 is an apocalyptic number.

It is an amenable number.

442006452 is an abundant number, since it is smaller than the sum of its proper divisors (677992428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442006452 is a wasteful number, since it uses less digits than its factorization.

442006452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29732 (or 29727 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 442006452 is about 21023.9494862407. The cubic root of 442006452 is about 761.7448667422.

Adding to 442006452 its reverse (254600244), we get a palindrome (696606696).

The spelling of 442006452 in words is "four hundred forty-two million, six thousand, four hundred fifty-two".