401123632 has 80 divisors (see below), whose sum is σ = 987492352. Its totient is φ = 153550080.

The previous prime is 401123581. The next prime is 401123641. The reversal of 401123632 is 236321104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40693 + ... + 49579.

Almost surely, 2^401123632 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 401123632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493746176).

401123632 is an abundant number, since it is smaller than the sum of its proper divisors (586368720).

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

401123632 is a wasteful number, since it uses less digits than its factorization.

401123632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946 (or 8940 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 401123632 is about 20028.0711003332. The cubic root of 401123632 is about 737.4955706715.

Adding to 401123632 its reverse (236321104), we get a palindrome (637444736).

The spelling of 401123632 in words is "four hundred one million, one hundred twenty-three thousand, six hundred thirty-two".