1020412044 has 18 divisors (see below), whose sum is σ = 2579374980. Its totient is φ = 340137336.

The previous prime is 1020412033. The next prime is 1020412049. The reversal of 1020412044 is 4402140201.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1020412049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14172354 + ... + 14172425.

It is an arithmetic number, because the mean of its divisors is an integer number (143298610).

Almost surely, 2^1020412044 is an apocalyptic number.

It is an amenable number.

1020412044 is an abundant number, since it is smaller than the sum of its proper divisors (1558962936).

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

1020412044 is a wasteful number, since it uses less digits than its factorization.

1020412044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28344789 (or 28344784 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1020412044 is about 31943.8889930453. Note that the first 3 decimals coincide. The cubic root of 1020412044 is about 1006.7582379945.

Adding to 1020412044 its reverse (4402140201), we get a palindrome (5422552245).

The spelling of 1020412044 in words is "one billion, twenty million, four hundred twelve thousand, forty-four".