40040063670 has 32 divisors (see below), whose sum is σ = 96101468928. Its totient is φ = 10676759648.

The previous prime is 40040063669. The next prime is 40040063677. The reversal of 40040063670 is 7636004004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040063677) 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 15 ways as a sum of consecutive naturals, for example, 927097 + ... + 969323.

It is an arithmetic number, because the mean of its divisors is an integer number (3003170904).

Almost surely, 2^40040063670 is an apocalyptic number.

40040063670 is an abundant number, since it is smaller than the sum of its proper divisors (56061405258).

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

40040063670 is a wasteful number, since it uses less digits than its factorization.

40040063670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73844.

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 40040063670 its reverse (7636004004), we get a palindrome (47676067674).

The spelling of 40040063670 in words is "forty billion, forty million, sixty-three thousand, six hundred seventy".