400356405060 has 384 divisors, whose sum is σ = 1268554936320. Its totient is φ = 93835044864.

The previous prime is 400356404963. The next prime is 400356405121. The reversal of 400356405060 is 60504653004.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 546188454 + ... + 546189186.

It is an arithmetic number, because the mean of its divisors is an integer number (3303528480).

Almost surely, 2^400356405060 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 400356405060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634277468160).

400356405060 is an abundant number, since it is smaller than the sum of its proper divisors (868198531260).

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

400356405060 is a wasteful number, since it uses less digits than its factorization.

400356405060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 400356405060 in words is "four hundred billion, three hundred fifty-six million, four hundred five thousand, sixty".