40979209392 has 240 divisors, whose sum is σ = 132451210080. Its totient is φ = 12114432000.

The previous prime is 40979209391. The next prime is 40979209417. The reversal of 40979209392 is 29390297904.

40979209392 is a `hidden beast` number, since 40 + 9 + 7 + 9 + 209 + 392 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (40979209391) 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, 2133592 + ... + 2152712.

It is an arithmetic number, because the mean of its divisors is an integer number (551880042).

Almost surely, 2^40979209392 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 40979209392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66225605040).

40979209392 is an abundant number, since it is smaller than the sum of its proper divisors (91472000688).

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

40979209392 is a wasteful number, since it uses less digits than its factorization.

40979209392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19201 (or 19178 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 40979209392 in words is "forty billion, nine hundred seventy-nine million, two hundred nine thousand, three hundred ninety-two".