1442950728 has 32 divisors (see below), whose sum is σ = 3668522400. Its totient is φ = 472830848.

The previous prime is 1442950727. The next prime is 1442950783. The reversal of 1442950728 is 8270592441.

It is a self number, because there is not a number n which added to its sum of digits gives 1442950728.

It is not an unprimeable number, because it can be changed into a prime (1442950723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508101 + ... + 510932.

It is an arithmetic number, because the mean of its divisors is an integer number (114641325).

Almost surely, 2^1442950728 is an apocalyptic number.

It is an amenable number.

1442950728 is an abundant number, since it is smaller than the sum of its proper divisors (2225571672).

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

1442950728 is a wasteful number, since it uses less digits than its factorization.

1442950728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019101 (or 1019097 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1442950728 is about 37986.1912805167. The cubic root of 1442950728 is about 1130.0140254609.

The spelling of 1442950728 in words is "one billion, four hundred forty-two million, nine hundred fifty thousand, seven hundred twenty-eight".