1020005044 has 24 divisors (see below), whose sum is σ = 1885120160. Its totient is φ = 481575456.

The previous prime is 1020005003. The next prime is 1020005053. The reversal of 1020005044 is 4405000201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474 + ... + 45190.

Almost surely, 2^1020005044 is an apocalyptic number.

It is an amenable number.

1020005044 is a deficient number, since it is larger than the sum of its proper divisors (865115116).

1020005044 is a wasteful number, since it uses less digits than its factorization.

1020005044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44047 (or 44045 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1020005044 is about 31937.5178121281. The cubic root of 1020005044 is about 1006.6243688400.

Adding to 1020005044 its reverse (4405000201), we get a palindrome (5425005245).

The spelling of 1020005044 in words is "one billion, twenty million, five thousand, forty-four".