40229579436 has 12 divisors (see below), whose sum is σ = 93869018712. Its totient is φ = 13409859808.

The previous prime is 40229579419. The next prime is 40229579437. The reversal of 40229579436 is 63497592204.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40229579437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676232465 + ... + 1676232488.

It is an arithmetic number, because the mean of its divisors is an integer number (7822418226).

Almost surely, 2^40229579436 is an apocalyptic number.

It is an amenable number.

40229579436 is an abundant number, since it is smaller than the sum of its proper divisors (53639439276).

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

40229579436 is a wasteful number, since it uses less digits than its factorization.

40229579436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352464960 (or 3352464958 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 40229579436 in words is "forty billion, two hundred twenty-nine million, five hundred seventy-nine thousand, four hundred thirty-six".