442012308 has 96 divisors (see below), whose sum is σ = 1145612160. Its totient is φ = 132034560.

The previous prime is 442012303. The next prime is 442012327. The reversal of 442012308 is 803210244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442012301) 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, 359038 + ... + 360266.

It is an arithmetic number, because the mean of its divisors is an integer number (11933460).

Almost surely, 2^442012308 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 442012308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572806080).

442012308 is an abundant number, since it is smaller than the sum of its proper divisors (703599852).

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

442012308 is a wasteful number, since it uses less digits than its factorization.

442012308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 442012308 is about 21024.0887555204. The cubic root of 442012308 is about 761.7482307642.

The spelling of 442012308 in words is "four hundred forty-two million, twelve thousand, three hundred eight".