1442881200 has 120 divisors (see below), whose sum is σ = 4720555008. Its totient is φ = 376567040.

The previous prime is 1442881199. The next prime is 1442881217. The reversal of 1442881200 is 21882441.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43609 + ... + 69191.

Almost surely, 2^1442881200 is an apocalyptic number.

1442881200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442881200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2360277504).

1442881200 is an abundant number, since it is smaller than the sum of its proper divisors (3277673808).

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

1442881200 is a wasteful number, since it uses less digits than its factorization.

1442881200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25651 (or 25640 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1442881200 is about 37985.2760948239. The cubic root of 1442881200 is about 1129.9958754124.

The spelling of 1442881200 in words is "one billion, four hundred forty-two million, eight hundred eighty-one thousand, two hundred".