400061256224 has 48 divisors (see below), whose sum is σ = 953087119488. Its totient is φ = 161369244672.

The previous prime is 400061256223. The next prime is 400061256227. The reversal of 400061256224 is 422652160004.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (400061256223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52525244 + ... + 52532859.

It is an arithmetic number, because the mean of its divisors is an integer number (19855981656).

Almost surely, 2^400061256224 is an apocalyptic number.

It is an amenable number.

400061256224 is an abundant number, since it is smaller than the sum of its proper divisors (553025863264).

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

400061256224 is a wasteful number, since it uses less digits than its factorization.

400061256224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105058137 (or 105058129 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 400061256224 in words is "four hundred billion, sixty-one million, two hundred fifty-six thousand, two hundred twenty-four".