400014412332402 has 128 divisors (see below), whose sum is σ = 1004311739289600. Its totient is φ = 103564326767616.

The previous prime is 400014412332373. The next prime is 400014412332449. The reversal of 400014412332402 is 204233214410004.

It is a self number, because there is not a number n which added to its sum of digits gives 400014412332402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 772242598 + ... + 772760414.

It is an arithmetic number, because the mean of its divisors is an integer number (7846185463200).

Almost surely, 2^{400014412332402} is an apocalyptic number.

400014412332402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 400014412332402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502155869644800).

400014412332402 is an abundant number, since it is smaller than the sum of its proper divisors (604297326957198).

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

400014412332402 is a wasteful number, since it uses less digits than its factorization.

400014412332402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559960.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 400014412332402 its reverse (204233214410004), we get a palindrome (604247626742406).

The spelling of 400014412332402 in words is "four hundred trillion, fourteen billion, four hundred twelve million, three hundred thirty-two thousand, four hundred two".