400444235413500 has 96 divisors (see below), whose sum is σ = 1166110568663040. Its totient is φ = 106783576776000.

The previous prime is 400444235413457. The next prime is 400444235413531. The reversal of 400444235413500 is 5314532444004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103152685 + ... + 106964315.

It is an arithmetic number, because the mean of its divisors is an integer number (12146985090240).

Almost surely, 2^{400444235413500} is an apocalyptic number.

It is an amenable number.

400444235413500 is an abundant number, since it is smaller than the sum of its proper divisors (765666333249540).

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

400444235413500 is a wasteful number, since it uses less digits than its factorization.

400444235413500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881692 (or 3881680 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 400444235413500 its reverse (5314532444004), we get a palindrome (405758767857504).

The spelling of 400444235413500 in words is "four hundred trillion, four hundred forty-four billion, two hundred thirty-five million, four hundred thirteen thousand, five hundred".