442154234508 has 48 divisors (see below), whose sum is σ = 1179580007424. Its totient is φ = 126275990400.

The previous prime is 442154234507. The next prime is 442154234521. The reversal of 442154234508 is 805432451244.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 442154234508.

It is not an unprimeable number, because it can be changed into a prime (442154234507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921985 + ... + 1316952.

It is an arithmetic number, because the mean of its divisors is an integer number (24574583488).

Almost surely, 2^442154234508 is an apocalyptic number.

It is an amenable number.

442154234508 is an abundant number, since it is smaller than the sum of its proper divisors (737425772916).

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

442154234508 is a wasteful number, since it uses less digits than its factorization.

442154234508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241302 (or 2241300 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 42.

The spelling of 442154234508 in words is "four hundred forty-two billion, one hundred fifty-four million, two hundred thirty-four thousand, five hundred eight".