40600721280 has 512 divisors, whose sum is σ = 151125811200. Its totient is φ = 9080709120.

The previous prime is 40600721219. The next prime is 40600721323. The reversal of 40600721280 is 8212700604.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192420375 + ... + 192420585.

It is an arithmetic number, because the mean of its divisors is an integer number (295167600).

Almost surely, 2^40600721280 is an apocalyptic number.

40600721280 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 40600721280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75562905600).

40600721280 is an abundant number, since it is smaller than the sum of its proper divisors (110525089920).

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

40600721280 is a wasteful number, since it uses less digits than its factorization.

40600721280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 40600721280 in words is "forty billion, six hundred million, seven hundred twenty-one thousand, two hundred eighty".