40294043531910 has 768 divisors, whose sum is σ = 127210562519040. Its totient is φ = 8651384755200.

The previous prime is 40294043531899. The next prime is 40294043531947. The reversal of 40294043531910 is 1913534049204.

40294043531910 is a `hidden beast` number, since 4 + 0 + 2 + 9 + 404 + 3 + 53 + 191 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 131250955977 + ... + 131250956283.

It is an arithmetic number, because the mean of its divisors is an integer number (165638753280).

Almost surely, 2^{40294043531910} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40294043531910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63605281259520).

40294043531910 is an abundant number, since it is smaller than the sum of its proper divisors (86916518987130).

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

40294043531910 is a wasteful number, since it uses less digits than its factorization.

40294043531910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 40294043531910 in words is "forty trillion, two hundred ninety-four billion, forty-three million, five hundred thirty-one thousand, nine hundred ten".