442152232 has 8 divisors (see below), whose sum is σ = 829035450. Its totient is φ = 221076112.

The previous prime is 442152209. The next prime is 442152239. The reversal of 442152232 is 232251244.

It can be written as a sum of positive squares in only one way, i.e., 245423556 + 196728676 = 15666^2 + 14026^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 442152197 and 442152206.

It is not an unprimeable number, because it can be changed into a prime (442152239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27634507 + ... + 27634522.

Almost surely, 2^442152232 is an apocalyptic number.

It is an amenable number.

442152232 is a deficient number, since it is larger than the sum of its proper divisors (386883218).

442152232 is a wasteful number, since it uses less digits than its factorization.

442152232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55269035 (or 55269031 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 442152232 is about 21027.4161988581. The cubic root of 442152232 is about 761.8286022926.

The spelling of 442152232 in words is "four hundred forty-two million, one hundred fifty-two thousand, two hundred thirty-two".