442252030 has 32 divisors (see below), whose sum is σ = 898374240. Its totient is φ = 155272320.

The previous prime is 442252021. The next prime is 442252043. The reversal of 442252030 is 30252244.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 442251992 and 442252010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66129 + ... + 72508.

It is an arithmetic number, because the mean of its divisors is an integer number (28074195).

Almost surely, 2^442252030 is an apocalyptic number.

442252030 is an abundant number, since it is smaller than the sum of its proper divisors (456122210).

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

442252030 is a wasteful number, since it uses less digits than its factorization.

442252030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138684.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 442252030 is about 21029.7891097367. The cubic root of 442252030 is about 761.8859153219.

The spelling of 442252030 in words is "four hundred forty-two million, two hundred fifty-two thousand, thirty".