40003013020 has 12 divisors (see below), whose sum is σ = 84006327384. Its totient is φ = 16001205200.

The previous prime is 40003013009. The next prime is 40003013033. The reversal of 40003013020 is 2031030004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000075306 + ... + 1000075345.

It is an arithmetic number, because the mean of its divisors is an integer number (7000527282).

Almost surely, 2^40003013020 is an apocalyptic number.

It is an amenable number.

40003013020 is an abundant number, since it is smaller than the sum of its proper divisors (44003314364).

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

40003013020 is a wasteful number, since it uses less digits than its factorization.

40003013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000150660 (or 2000150658 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 40003013020 its reverse (2031030004), we get a palindrome (42034043024).

The spelling of 40003013020 in words is "forty billion, three million, thirteen thousand, twenty".