1020032144 has 20 divisors (see below), whose sum is σ = 1977008880. Its totient is φ = 509836320.

The previous prime is 1020032077. The next prime is 1020032171. The reversal of 1020032144 is 4412300201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43727 + ... + 62865.

It is an arithmetic number, because the mean of its divisors is an integer number (98850444).

Almost surely, 2^1020032144 is an apocalyptic number.

It is an amenable number.

1020032144 is a deficient number, since it is larger than the sum of its proper divisors (956976736).

1020032144 is a wasteful number, since it uses less digits than its factorization.

1020032144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22478 (or 22472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1020032144 is about 31937.9420752183. The cubic root of 1020032144 is about 1006.6332835930.

Adding to 1020032144 its reverse (4412300201), we get a palindrome (5432332345).

The spelling of 1020032144 in words is "one billion, twenty million, thirty-two thousand, one hundred forty-four".