40001334960 has 40 divisors (see below), whose sum is σ = 124004139120. Its totient is φ = 10667022592.

The previous prime is 40001334941. The next prime is 40001334973. The reversal of 40001334960 is 6943310004.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83335875 + ... + 83336354.

It is an arithmetic number, because the mean of its divisors is an integer number (3100103478).

Almost surely, 2^40001334960 is an apocalyptic number.

40001334960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40001334960 is an abundant number, since it is smaller than the sum of its proper divisors (84002804160).

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

40001334960 is a wasteful number, since it uses less digits than its factorization.

40001334960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166672245 (or 166672239 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 40001334960 its reverse (6943310004), we get a palindrome (46944644964).

The spelling of 40001334960 in words is "forty billion, one million, three hundred thirty-four thousand, nine hundred sixty".