1442457621000 has 768 divisors, whose sum is σ = 5553046886400. Its totient is φ = 334540800000.

The previous prime is 1442457620971. The next prime is 1442457621119. The reversal of 1442457621000 is 1267542441.

1442457621000 is a `hidden beast` number, since 1 + 4 + 4 + 24 + 5 + 7 + 621 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 273138360 + ... + 273143640.

It is an arithmetic number, because the mean of its divisors is an integer number (7230529800).

Almost surely, 2^{1442457621000} is an apocalyptic number.

1442457621000 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 1442457621000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2776523443200).

1442457621000 is an abundant number, since it is smaller than the sum of its proper divisors (4110589265400).

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

1442457621000 is a wasteful number, since it uses less digits than its factorization.

1442457621000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439 (or 5422 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 1442457621000 in words is "one trillion, four hundred forty-two billion, four hundred fifty-seven million, six hundred twenty-one thousand".