40000299993 has 96 divisors (see below), whose sum is σ = 64335398400. Its totient is φ = 23850547200.

The previous prime is 40000299979. The next prime is 40000300009. The reversal of 40000299993 is 39999200004.

It is not a de Polignac number, because 40000299993 - 2¹⁶ = 40000234457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40000299943) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70299013 + ... + 70299581.

It is an arithmetic number, because the mean of its divisors is an integer number (670160400).

Almost surely, 2^40000299993 is an apocalyptic number.

It is an amenable number.

40000299993 is a deficient number, since it is larger than the sum of its proper divisors (24335098407).

40000299993 is a wasteful number, since it uses less digits than its factorization.

40000299993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

Adding to 40000299993 its reverse (39999200004), we get a palindrome (79999499997).

The spelling of 40000299993 in words is "forty billion, two hundred ninety-nine thousand, nine hundred ninety-three".