40299071280 has 80 divisors (see below), whose sum is σ = 134536909920. Its totient is φ = 9919770624.

The previous prime is 40299071243. The next prime is 40299071299. The reversal of 40299071280 is 8217099204.

It is a tau number, because it is divible by the number of its divisors (80).

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, 6455065 + ... + 6461304.

It is an arithmetic number, because the mean of its divisors is an integer number (1681711374).

Almost surely, 2^40299071280 is an apocalyptic number.

40299071280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40299071280 is an abundant number, since it is smaller than the sum of its proper divisors (94237838640).

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

40299071280 is a wasteful number, since it uses less digits than its factorization.

40299071280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12916398 (or 12916392 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 40299071280 in words is "forty billion, two hundred ninety-nine million, seventy-one thousand, two hundred eighty".