40491306167340 has 384 divisors, whose sum is σ = 131419246952448. Its totient is φ = 9124336005120.

The previous prime is 40491306167327. The next prime is 40491306167401. The reversal of 40491306167340 is 4376160319404.

It is a self number, because there is not a number n which added to its sum of digits gives 40491306167340.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5590401759 + ... + 5590409001.

It is an arithmetic number, because the mean of its divisors is an integer number (342237622272).

Almost surely, 2^{40491306167340} 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 40491306167340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65709623476224).

40491306167340 is an abundant number, since it is smaller than the sum of its proper divisors (90927940785108).

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

40491306167340 is a wasteful number, since it uses less digits than its factorization.

40491306167340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037 (or 8035 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 40491306167340 in words is "forty trillion, four hundred ninety-one billion, three hundred six million, one hundred sixty-seven thousand, three hundred forty".