1020625344 has 84 divisors (see below), whose sum is σ = 2930353296. Its totient is φ = 339637248.

The previous prime is 1020625327. The next prime is 1020625381. The reversal of 1020625344 is 4435260201.

1020625344 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 625 + 34 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472972 + ... + 475124.

Almost surely, 2^1020625344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020625344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465176648).

1020625344 is an abundant number, since it is smaller than the sum of its proper divisors (1909727952).

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

1020625344 is a wasteful number, since it uses less digits than its factorization.

1020625344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994 (or 2981 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1020625344 is about 31947.2274853390. The cubic root of 1020625344 is about 1006.8283817409.

Adding to 1020625344 its reverse (4435260201), we get a palindrome (5455885545).

The spelling of 1020625344 in words is "one billion, twenty million, six hundred twenty-five thousand, three hundred forty-four".