1021434044 has 6 divisors (see below), whose sum is σ = 1787509584. Its totient is φ = 510717020.

The previous prime is 1021433999. The next prime is 1021434047. The reversal of 1021434044 is 4404341201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021434047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127679252 + ... + 127679259.

It is an arithmetic number, because the mean of its divisors is an integer number (297918264).

Almost surely, 2^1021434044 is an apocalyptic number.

It is an amenable number.

1021434044 is a deficient number, since it is larger than the sum of its proper divisors (766075540).

1021434044 is a wasteful number, since it uses less digits than its factorization.

1021434044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255358515 (or 255358513 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1021434044 is about 31959.8817895186. The cubic root of 1021434044 is about 1007.0942341617.

Adding to 1021434044 its reverse (4404341201), we get a palindrome (5425775245).

The spelling of 1021434044 in words is "one billion, twenty-one million, four hundred thirty-four thousand, forty-four".