1020506644 has 12 divisors (see below), whose sum is σ = 1879880800. Its totient is φ = 483397848.

The previous prime is 1020506623. The next prime is 1020506647. The reversal of 1020506644 is 4466050201.

1020506644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020506647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6713784 + ... + 6713935.

Almost surely, 2^1020506644 is an apocalyptic number.

It is an amenable number.

1020506644 is a deficient number, since it is larger than the sum of its proper divisors (859374156).

1020506644 is a wasteful number, since it uses less digits than its factorization.

1020506644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13427742 (or 13427740 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1020506644 is about 31945.3696801274. The cubic root of 1020506644 is about 1006.7893484290.

Adding to 1020506644 its reverse (4466050201), we get a palindrome (5486556845).

The spelling of 1020506644 in words is "one billion, twenty million, five hundred six thousand, six hundred forty-four".