400044029360 has 40 divisors (see below), whose sum is σ = 951732664080. Its totient is φ = 156296270592.

The previous prime is 400044029323. The next prime is 400044029383. The reversal of 400044029360 is 63920440004.

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

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, 58142495 + ... + 58149374.

It is an arithmetic number, because the mean of its divisors is an integer number (23793316602).

Almost surely, 2^400044029360 is an apocalyptic number.

400044029360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400044029360 is an abundant number, since it is smaller than the sum of its proper divisors (551688634720).

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

400044029360 is a wasteful number, since it uses less digits than its factorization.

400044029360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116291925 (or 116291919 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 400044029360 its reverse (63920440004), we get a palindrome (463964469364).

The spelling of 400044029360 in words is "four hundred billion, forty-four million, twenty-nine thousand, three hundred sixty".