1021430244 has 24 divisors (see below), whose sum is σ = 2523534048. Its totient is φ = 320448640.

The previous prime is 1021430237. The next prime is 1021430279. The reversal of 1021430244 is 4420341201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021430244.

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, 2503302 + ... + 2503709.

It is an arithmetic number, because the mean of its divisors is an integer number (105147252).

Almost surely, 2^1021430244 is an apocalyptic number.

It is an amenable number.

1021430244 is an abundant number, since it is smaller than the sum of its proper divisors (1502103804).

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

1021430244 is a wasteful number, since it uses less digits than its factorization.

1021430244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007035 (or 5007033 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1021430244 is about 31959.8223399317. The cubic root of 1021430244 is about 1007.0929852761.

Adding to 1021430244 its reverse (4420341201), we get a palindrome (5441771445).

The spelling of 1021430244 in words is "one billion, twenty-one million, four hundred thirty thousand, two hundred forty-four".