442051452 has 96 divisors (see below), whose sum is σ = 1170892800. Its totient is φ = 144196416.

The previous prime is 442051451. The next prime is 442051453. The reversal of 442051452 is 254150244.

442051452 is a `hidden beast` number, since 4 + 4 + 205 + 1 + 452 = 666.

It is an interprime number because it is at equal distance from previous prime (442051451) and next prime (442051453).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442051451) 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, 1680673 + ... + 1680935.

It is an arithmetic number, because the mean of its divisors is an integer number (12196800).

Almost surely, 2^442051452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442051452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585446400).

442051452 is an abundant number, since it is smaller than the sum of its proper divisors (728841348).

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

442051452 is a wasteful number, since it uses less digits than its factorization.

442051452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 442051452 is about 21025.0196670538. The cubic root of 442051452 is about 761.7707165578.

The spelling of 442051452 in words is "four hundred forty-two million, fifty-one thousand, four hundred fifty-two".