442351798 has 64 divisors (see below), whose sum is σ = 832094208. Its totient is φ = 172039680.

The previous prime is 442351759. The next prime is 442351799. The reversal of 442351798 is 897153244.

It is a super-2 number, since 2×442351798² = 391350226387665608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442351799) 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, 1681815 + ... + 1682077.

It is an arithmetic number, because the mean of its divisors is an integer number (13001472).

Almost surely, 2^442351798 is an apocalyptic number.

442351798 is a deficient number, since it is larger than the sum of its proper divisors (389742410).

442351798 is a wasteful number, since it uses less digits than its factorization.

442351798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its digits is 241920, while the sum is 43.

The square root of 442351798 is about 21032.1610397030. The cubic root of 442351798 is about 761.9432025048.

The spelling of 442351798 in words is "four hundred forty-two million, three hundred fifty-one thousand, seven hundred ninety-eight".