401004123432 has 128 divisors (see below), whose sum is σ = 1101589493760. Its totient is φ = 120635838720.

The previous prime is 401004123391. The next prime is 401004123473. The reversal of 401004123432 is 234321400104.

It is an interprime number because it is at equal distance from previous prime (401004123391) and next prime (401004123473).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37601733 + ... + 37612395.

It is an arithmetic number, because the mean of its divisors is an integer number (8606167920).

Almost surely, 2^401004123432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401004123432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550794746880).

401004123432 is an abundant number, since it is smaller than the sum of its proper divisors (700585370328).

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

401004123432 is a wasteful number, since it uses less digits than its factorization.

401004123432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11703 (or 11699 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 401004123432 its reverse (234321400104), we get a palindrome (635325523536).

The spelling of 401004123432 in words is "four hundred one billion, four million, one hundred twenty-three thousand, four hundred thirty-two".