400242040332 has 24 divisors (see below), whose sum is σ = 947836873536. Its totient is φ = 131422759248.

The previous prime is 400242040313. The next prime is 400242040333. The reversal of 400242040332 is 233040242004.

It is not an unprimeable number, because it can be changed into a prime (400242040333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248905938 + ... + 248907545.

It is an arithmetic number, because the mean of its divisors is an integer number (39493203064).

Almost surely, 2^400242040332 is an apocalyptic number.

It is an amenable number.

400242040332 is an abundant number, since it is smaller than the sum of its proper divisors (547594833204).

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

400242040332 is a wasteful number, since it uses less digits than its factorization.

400242040332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497813557 (or 497813555 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 400242040332 its reverse (233040242004), we get a palindrome (633282282336).

The spelling of 400242040332 in words is "four hundred billion, two hundred forty-two million, forty thousand, three hundred thirty-two".