400084840000 has 70 divisors (see below), whose sum is σ = 992080474814. Its totient is φ = 160033920000.

The previous prime is 400084839961. The next prime is 400084840013. The reversal of 400084840000 is 48480004.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 122085950464 + 277998889536 = 349408^2 + 527256^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4961061 + ... + 5041060.

Almost surely, 2^400084840000 is an apocalyptic number.

400084840000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400084840000 is an abundant number, since it is smaller than the sum of its proper divisors (591995634814).

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

400084840000 is an equidigital number, since it uses as much as digits as its factorization.

400084840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10002153 (or 10002128 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The spelling of 400084840000 in words is "four hundred billion, eighty-four million, eight hundred forty thousand".