442056198 has 16 divisors (see below), whose sum is σ = 886278960. Its totient is φ = 146990976.

The previous prime is 442056133. The next prime is 442056227. The reversal of 442056198 is 891650244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87615 + ... + 92522.

It is an arithmetic number, because the mean of its divisors is an integer number (55392435).

Almost surely, 2^442056198 is an apocalyptic number.

442056198 is an abundant number, since it is smaller than the sum of its proper divisors (444222762).

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

442056198 is a wasteful number, since it uses less digits than its factorization.

442056198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180551.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 442056198 is about 21025.1325322815. The cubic root of 442056198 is about 761.7734427494.

It can be divided in two parts, 44205 and 6198, that added together give a triangular number (50403 = T₃₁₇).

The spelling of 442056198 in words is "four hundred forty-two million, fifty-six thousand, one hundred ninety-eight".