40003127940 has 48 divisors (see below), whose sum is σ = 115036028352. Its totient is φ = 10379189376.

The previous prime is 40003127939. The next prime is 40003127987. The reversal of 40003127940 is 4972130004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40003127898 and 40003127907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9007494 + ... + 9011933.

It is an arithmetic number, because the mean of its divisors is an integer number (2396583924).

Almost surely, 2^40003127940 is an apocalyptic number.

It is an amenable number.

40003127940 is an abundant number, since it is smaller than the sum of its proper divisors (75032900412).

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

40003127940 is a wasteful number, since it uses less digits than its factorization.

40003127940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18019476 (or 18019474 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 40003127940 its reverse (4972130004), we get a palindrome (44975257944).

The spelling of 40003127940 in words is "forty billion, three million, one hundred twenty-seven thousand, nine hundred forty".