40636029220 has 192 divisors, whose sum is σ = 98291128320. Its totient is φ = 14013554688.

The previous prime is 40636029209. The next prime is 40636029221. The reversal of 40636029220 is 2292063604.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (40636029221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47086509 + ... + 47087371.

It is an arithmetic number, because the mean of its divisors is an integer number (511932960).

Almost surely, 2^40636029220 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 40636029220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49145564160).

40636029220 is an abundant number, since it is smaller than the sum of its proper divisors (57655099100).

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

40636029220 is a wasteful number, since it uses less digits than its factorization.

40636029220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 40636029220 in words is "forty billion, six hundred thirty-six million, twenty-nine thousand, two hundred twenty".