442193900 has 36 divisors (see below), whose sum is σ = 969474408. Its totient is φ = 175050240.

The previous prime is 442193887. The next prime is 442193909. The reversal of 442193900 is 9391244.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (442193909) 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, 13094 + ... + 32493.

Almost surely, 2^442193900 is an apocalyptic number.

It is an amenable number.

442193900 is an abundant number, since it is smaller than the sum of its proper divisors (527280508).

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

442193900 is a wasteful number, since it uses less digits than its factorization.

442193900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45698 (or 45691 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 442193900 is about 21028.4069772296. The cubic root of 442193900 is about 761.8525328719.

The spelling of 442193900 in words is "four hundred forty-two million, one hundred ninety-three thousand, nine hundred".