40634043604 has 144 divisors (see below), whose sum is σ = 95945544576. Its totient is φ = 14856441600.

The previous prime is 40634043599. The next prime is 40634043607.

40634043604 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×40634043604² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40634043604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40634043607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2620434 + ... + 2635894.

It is an arithmetic number, because the mean of its divisors is an integer number (666288504).

Almost surely, 2^40634043604 is an apocalyptic number.

40634043604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40634043604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47972772288).

40634043604 is an abundant number, since it is smaller than the sum of its proper divisors (55311500972).

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

40634043604 is a wasteful number, since it uses less digits than its factorization.

40634043604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15566 (or 15557 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

It can be divided in two parts, 406340 and 43604, that added together give a palindrome (449944).

The spelling of 40634043604 in words is "forty billion, six hundred thirty-four million, forty-three thousand, six hundred four".