1442557864 has 16 divisors (see below), whose sum is σ = 2950686720. Its totient is φ = 655708080.

The previous prime is 1442557799. The next prime is 1442557867. The reversal of 1442557864 is 4687552441.

It is not an unprimeable number, because it can be changed into a prime (1442557867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8196264 + ... + 8196439.

It is an arithmetic number, because the mean of its divisors is an integer number (184417920).

Almost surely, 2^1442557864 is an apocalyptic number.

It is an amenable number.

1442557864 is an abundant number, since it is smaller than the sum of its proper divisors (1508128856).

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

1442557864 is a wasteful number, since it uses less digits than its factorization.

1442557864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16392720 (or 16392716 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 46.

The square root of 1442557864 is about 37981.0197862037. The cubic root of 1442557864 is about 1129.9114619852.

The spelling of 1442557864 in words is "one billion, four hundred forty-two million, five hundred fifty-seven thousand, eight hundred sixty-four".