40347125280 has 864 divisors, whose sum is σ = 176260069440. Its totient is φ = 8310435840.

The previous prime is 40347125261. The next prime is 40347125293. The reversal of 40347125280 is 8252174304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 176188206 + ... + 176188434.

It is an arithmetic number, because the mean of its divisors is an integer number (204004710).

Almost surely, 2^40347125280 is an apocalyptic number.

40347125280 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 40347125280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88130034720).

40347125280 is an abundant number, since it is smaller than the sum of its proper divisors (135912944160).

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

40347125280 is a wasteful number, since it uses less digits than its factorization.

40347125280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

Adding to 40347125280 its reverse (8252174304), we get a palindrome (48599299584).

The spelling of 40347125280 in words is "forty billion, three hundred forty-seven million, one hundred twenty-five thousand, two hundred eighty".