40307012040 has 32 divisors (see below), whose sum is σ = 120921036480. Its totient is φ = 10748536512.

The previous prime is 40307012021. The next prime is 40307012041. The reversal of 40307012040 is 4021070304.

It is a junction number, because it is equal to n+sod(n) for n = 40307011998 and 40307012016.

It is not an unprimeable number, because it can be changed into a prime (40307012041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167945764 + ... + 167946003.

It is an arithmetic number, because the mean of its divisors is an integer number (3778782390).

Almost surely, 2^40307012040 is an apocalyptic number.

40307012040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40307012040 is an abundant number, since it is smaller than the sum of its proper divisors (80614024440).

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

40307012040 is a wasteful number, since it uses less digits than its factorization.

40307012040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335891781 (or 335891777 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

Adding to 40307012040 its reverse (4021070304), we get a palindrome (44328082344).

The spelling of 40307012040 in words is "forty billion, three hundred seven million, twelve thousand, forty".