1442857530 has 64 divisors (see below), whose sum is σ = 3671539200. Its totient is φ = 361869120.

The previous prime is 1442857519. The next prime is 1442857543. The reversal of 1442857530 is 357582441.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70125 + ... + 88335.

It is an arithmetic number, because the mean of its divisors is an integer number (57367800).

Almost surely, 2^1442857530 is an apocalyptic number.

1442857530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442857530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835769600).

1442857530 is an abundant number, since it is smaller than the sum of its proper divisors (2228681670).

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

1442857530 is a wasteful number, since it uses less digits than its factorization.

1442857530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18379.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 1442857530 is about 37984.9645254540. The cubic root of 1442857530 is about 1129.9896963062.

The spelling of 1442857530 in words is "one billion, four hundred forty-two million, eight hundred fifty-seven thousand, five hundred thirty".