40354681240 has 64 divisors (see below), whose sum is σ = 93023199360. Its totient is φ = 15749660160.

The previous prime is 40354681223. The next prime is 40354681319. The reversal of 40354681240 is 4218645304.

It is a self number, because there is not a number n which added to its sum of digits gives 40354681240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331137 + ... + 436303.

It is an arithmetic number, because the mean of its divisors is an integer number (1453487490).

Almost surely, 2^40354681240 is an apocalyptic number.

40354681240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40354681240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46511599680).

40354681240 is an abundant number, since it is smaller than the sum of its proper divisors (52668518120).

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

40354681240 is a wasteful number, since it uses less digits than its factorization.

40354681240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105412 (or 105408 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 40354681240 in words is "forty billion, three hundred fifty-four million, six hundred eighty-one thousand, two hundred forty".