40040610012040 has 64 divisors (see below), whose sum is σ = 102554605906560. Its totient is φ = 13927168696320.

The previous prime is 40040610011977. The next prime is 40040610012041. The reversal of 40040610012040 is 4021001604004.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (40040610012041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1978280889 + ... + 1978301128.

It is an arithmetic number, because the mean of its divisors is an integer number (1602415717290).

Almost surely, 2^{40040610012040} is an apocalyptic number.

40040610012040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40040610012040 is an abundant number, since it is smaller than the sum of its proper divisors (62513995894520).

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

40040610012040 is a wasteful number, since it uses less digits than its factorization.

40040610012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956582062 (or 3956582058 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40040610012040 its reverse (4021001604004), we get a palindrome (44061611616044).

The spelling of 40040610012040 in words is "forty trillion, forty billion, six hundred ten million, twelve thousand, forty".