40313230040 has 32 divisors (see below), whose sum is σ = 90789714000. Its totient is φ = 16110190464.

The previous prime is 40313230039. The next prime is 40313230043. The reversal of 40313230040 is 4003231304.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40313229994 and 40313230021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40313230043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428630 + ... + 514149.

Almost surely, 2^40313230040 is an apocalyptic number.

40313230040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40313230040 is an abundant number, since it is smaller than the sum of its proper divisors (50476483960).

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

40313230040 is a wasteful number, since it uses less digits than its factorization.

40313230040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943859 (or 943855 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 40313230040 its reverse (4003231304), we get a palindrome (44316461344).

The spelling of 40313230040 in words is "forty billion, three hundred thirteen million, two hundred thirty thousand, forty".