400884488480 has 48 divisors (see below), whose sum is σ = 1082388121920. Its totient is φ = 137446109952.

The previous prime is 400884488461. The next prime is 400884488489. The reversal of 400884488480 is 84884488004.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (400884488489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178965170 + ... + 178967409.

It is an arithmetic number, because the mean of its divisors is an integer number (22549752540).

Almost surely, 2^400884488480 is an apocalyptic number.

400884488480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400884488480 is an abundant number, since it is smaller than the sum of its proper divisors (681503633440).

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

400884488480 is a wasteful number, since it uses less digits than its factorization.

400884488480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357932601 (or 357932593 counting only the distinct ones).

The product of its (nonzero) digits is 8388608, while the sum is 56.

The spelling of 400884488480 in words is "four hundred billion, eight hundred eighty-four million, four hundred eighty-eight thousand, four hundred eighty".