400421330333115 has 128 divisors (see below), whose sum is σ = 805323027382272. Its totient is φ = 165368995683840.

The previous prime is 400421330333111. The next prime is 400421330333207. The reversal of 400421330333115 is 511333033124004.

It is a happy number.

It is not a de Polignac number, because 400421330333115 - 2² = 400421330333111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400421330333111) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 2827304194 + ... + 2827445816.

It is an arithmetic number, because the mean of its divisors is an integer number (6291586151424).

Almost surely, 2^{400421330333115} is an apocalyptic number.

400421330333115 is an abundant number, since it is smaller than the sum of its proper divisors (404901697049157).

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

400421330333115 is a wasteful number, since it uses less digits than its factorization.

400421330333115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185769.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 400421330333115 its reverse (511333033124004), we get a palindrome (911754363457119).

The spelling of 400421330333115 in words is "four hundred trillion, four hundred twenty-one billion, three hundred thirty million, three hundred thirty-three thousand, one hundred fifteen".