400573648260 has 288 divisors, whose sum is σ = 1315618536960. Its totient is φ = 98270060544.

The previous prime is 400573648249. The next prime is 400573648297. The reversal of 400573648260 is 62846375004.

400573648260 is a `hidden beast` number, since 40 + 0 + 5 + 73 + 6 + 482 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 162371547 + ... + 162374013.

It is an arithmetic number, because the mean of its divisors is an integer number (4568119920).

Almost surely, 2^400573648260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400573648260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657809268480).

400573648260 is an abundant number, since it is smaller than the sum of its proper divisors (915044888700).

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

400573648260 is a wasteful number, since it uses less digits than its factorization.

400573648260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 400573648260 in words is "four hundred billion, five hundred seventy-three million, six hundred forty-eight thousand, two hundred sixty".