400080480080 has 80 divisors (see below), whose sum is σ = 958694711040. Its totient is φ = 155190145536.

The previous prime is 400080480071. The next prime is 400080480089. The reversal of 400080480080 is 80084080004.

It is an interprime number because it is at equal distance from previous prime (400080480071) and next prime (400080480089).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400080480089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78254 + ... + 897933.

It is an arithmetic number, because the mean of its divisors is an integer number (11983683888).

Almost surely, 2^400080480080 is an apocalyptic number.

400080480080 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 400080480080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479347355520).

400080480080 is an abundant number, since it is smaller than the sum of its proper divisors (558614230960).

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

400080480080 is a wasteful number, since it uses less digits than its factorization.

400080480080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976356 (or 976350 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 400080480080 in words is "four hundred billion, eighty million, four hundred eighty thousand, eighty".