400871159380 has 24 divisors (see below), whose sum is σ = 850164383880. Its totient is φ = 158760854400.

The previous prime is 400871159347. The next prime is 400871159399. The reversal of 400871159380 is 83951178004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43609133584 + 357262025796 = 208828^2 + 597714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 400871159380.

It is a congruent number.

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, 99223515 + ... + 99227554.

It is an arithmetic number, because the mean of its divisors is an integer number (35423515995).

Almost surely, 2^400871159380 is an apocalyptic number.

It is an amenable number.

400871159380 is an abundant number, since it is smaller than the sum of its proper divisors (449293224500).

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

400871159380 is a wasteful number, since it uses less digits than its factorization.

400871159380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198451179 (or 198451177 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 400871159380 in words is "four hundred billion, eight hundred seventy-one million, one hundred fifty-nine thousand, three hundred eighty".