400606300744 has 128 divisors (see below), whose sum is σ = 856206650880. Its totient is φ = 174482380800.

The previous prime is 400606300741. The next prime is 400606300751. The reversal of 400606300744 is 447003606004.

It is not an unprimeable number, because it can be changed into a prime (400606300741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16032949 + ... + 16057915.

It is an arithmetic number, because the mean of its divisors is an integer number (6689114460).

Almost surely, 2^400606300744 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 400606300744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428103325440).

400606300744 is an abundant number, since it is smaller than the sum of its proper divisors (455600350136).

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

400606300744 is a wasteful number, since it uses less digits than its factorization.

400606300744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25151 (or 25147 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 400606300744 its reverse (447003606004), we get a palindrome (847609906748).

The spelling of 400606300744 in words is "four hundred billion, six hundred six million, three hundred thousand, seven hundred forty-four".