442143996 has 48 divisors (see below), whose sum is σ = 1230319104. Its totient is φ = 120833856.

The previous prime is 442143983. The next prime is 442143997. The reversal of 442143996 is 699341244.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442143997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112495 + ... + 116358.

It is an arithmetic number, because the mean of its divisors is an integer number (25631648).

Almost surely, 2^442143996 is an apocalyptic number.

442143996 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

442143996 is an abundant number, since it is smaller than the sum of its proper divisors (788175108).

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

442143996 is a wasteful number, since it uses less digits than its factorization.

442143996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228890 (or 228888 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 442143996 is about 21027.2203583831. The cubic root of 442143996 is about 761.8238720520.

The spelling of 442143996 in words is "four hundred forty-two million, one hundred forty-three thousand, nine hundred ninety-six".