1000542628 has 12 divisors (see below), whose sum is σ = 1770623820. Its totient is φ = 494650112.

The previous prime is 1000542623. The next prime is 1000542637. The reversal of 1000542628 is 8262450001.

It can be written as a sum of positive squares in 2 ways, for example, as 599662144 + 400880484 = 24488^2 + 20022^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000542596 and 1000542605.

It is not an unprimeable number, because it can be changed into a prime (1000542623) 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, 1404901 + ... + 1405612.

It is an arithmetic number, because the mean of its divisors is an integer number (147551985).

Almost surely, 2^1000542628 is an apocalyptic number.

It is an amenable number.

1000542628 is a deficient number, since it is larger than the sum of its proper divisors (770081192).

1000542628 is a wasteful number, since it uses less digits than its factorization.

1000542628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810606 (or 2810604 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1000542628 is about 31631.3551401137. The cubic root of 1000542628 is about 1000.1808432937.

Adding to 1000542628 its reverse (8262450001), we get a palindrome (9262992629).

The spelling of 1000542628 in words is "one billion, five hundred forty-two thousand, six hundred twenty-eight".