1020001038 has 32 divisors (see below), whose sum is σ = 2336510976. Its totient is φ = 290793888.

The previous prime is 1020001013. The next prime is 1020001039. The reversal of 1020001038 is 8301000201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020001039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6781 + ... + 45672.

It is an arithmetic number, because the mean of its divisors is an integer number (73015968).

Almost surely, 2^1020001038 is an apocalyptic number.

1020001038 is an abundant number, since it is smaller than the sum of its proper divisors (1316509938).

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

1020001038 is a wasteful number, since it uses less digits than its factorization.

1020001038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52928.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1020001038 is about 31937.4550958588. The cubic root of 1020001038 is about 1006.6230510222.

Adding to 1020001038 its reverse (8301000201), we get a palindrome (9321001239).

The spelling of 1020001038 in words is "one billion, twenty million, one thousand, thirty-eight".