400277524068 has 120 divisors (see below), whose sum is σ = 1062961365312. Its totient is φ = 131318231616.

The previous prime is 400277524037. The next prime is 400277524069. The reversal of 400277524068 is 860425772004.

It is a happy number.

400277524068 is a `hidden beast` number, since 40 + 0 + 27 + 7 + 524 + 0 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (400277524069) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 26541346 + ... + 26556422.

Almost surely, 2^400277524068 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 400277524068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531480682656).

400277524068 is an abundant number, since it is smaller than the sum of its proper divisors (662683841244).

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

400277524068 is a wasteful number, since it uses less digits than its factorization.

400277524068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16383 (or 16372 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 400277524068 in words is "four hundred billion, two hundred seventy-seven million, five hundred twenty-four thousand, sixty-eight".