400747671080 has 32 divisors (see below), whose sum is σ = 901764397800. Its totient is φ = 160284466176.

The previous prime is 400747671067. The next prime is 400747671097. The reversal of 400747671080 is 80176747004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 144669165316 + 256078505764 = 380354^2 + 506042^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 6245 + ... + 895284.

Almost surely, 2^400747671080 is an apocalyptic number.

400747671080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400747671080 is an abundant number, since it is smaller than the sum of its proper divisors (501016726720).

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

400747671080 is a wasteful number, since it uses less digits than its factorization.

400747671080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912653 (or 912649 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 400747671080 in words is "four hundred billion, seven hundred forty-seven million, six hundred seventy-one thousand, eighty".