40544698320 has 240 divisors, whose sum is σ = 156993737472. Its totient is φ = 9185218560.

The previous prime is 40544698307. The next prime is 40544698331. The reversal of 40544698320 is 2389644504.

40544698320 is a `hidden beast` number, since 4 + 0 + 544 + 6 + 9 + 83 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 533925 + ... + 605115.

Almost surely, 2^40544698320 is an apocalyptic number.

40544698320 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 40544698320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78496868736).

40544698320 is an abundant number, since it is smaller than the sum of its proper divisors (116449039152).

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

40544698320 is a wasteful number, since it uses less digits than its factorization.

40544698320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71330 (or 71321 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 40544698320 in words is "forty billion, five hundred forty-four million, six hundred ninety-eight thousand, three hundred twenty".