40020003000 has 96 divisors (see below), whose sum is σ = 135267640560. Its totient is φ = 10671998400.

The previous prime is 40020002999. The next prime is 40020003017. The reversal of 40020003000 is 30002004.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2214334 + ... + 2232333.

Almost surely, 2^40020003000 is an apocalyptic number.

40020003000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40020003000 is an abundant number, since it is smaller than the sum of its proper divisors (95247637560).

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

40020003000 is a wasteful number, since it uses less digits than its factorization.

40020003000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446694 (or 4446677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 40020003000 its reverse (30002004), we get a palindrome (40050005004).

The spelling of 40020003000 in words is "forty billion, twenty million, three thousand".