40634503980 has 144 divisors (see below), whose sum is σ = 138129605376. Its totient is φ = 8741514240.

The previous prime is 40634503927. The next prime is 40634504017. The reversal of 40634503980 is 8930543604.

It is a super-3 number, since 3×40634503980³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46006 + ... + 288765.

Almost surely, 2^40634503980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40634503980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69064802688).

40634503980 is an abundant number, since it is smaller than the sum of its proper divisors (97495101396).

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

40634503980 is a wasteful number, since it uses less digits than its factorization.

40634503980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334824 (or 334805 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 40634503980 in words is "forty billion, six hundred thirty-four million, five hundred three thousand, nine hundred eighty".