400272503364 has 72 divisors (see below), whose sum is σ = 1085455949760. Its totient is φ = 128823325344.

The previous prime is 400272503339. The next prime is 400272503377. The reversal of 400272503364 is 463305272004.

400272503364 is a `hidden beast` number, since 4 + 0 + 0 + 272 + 50 + 336 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7071864 + ... + 7128239.

It is an arithmetic number, because the mean of its divisors is an integer number (15075777080).

Almost surely, 2^400272503364 is an apocalyptic number.

It is an amenable number.

400272503364 is an abundant number, since it is smaller than the sum of its proper divisors (685183446396).

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

400272503364 is a wasteful number, since it uses less digits than its factorization.

400272503364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14200151 (or 14200137 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

Adding to 400272503364 its reverse (463305272004), we get a palindrome (863577775368).

The spelling of 400272503364 in words is "four hundred billion, two hundred seventy-two million, five hundred three thousand, three hundred sixty-four".