401081032 has 64 divisors (see below), whose sum is σ = 872827200. Its totient is φ = 170864640.

The previous prime is 401081029. The next prime is 401081077. The reversal of 401081032 is 230180104.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 160948 + ... + 163420.

It is an arithmetic number, because the mean of its divisors is an integer number (13637925).

Almost surely, 2^401081032 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 401081032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436413600).

401081032 is an abundant number, since it is smaller than the sum of its proper divisors (471746168).

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

401081032 is a wasteful number, since it uses less digits than its factorization.

401081032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 401081032 is about 20027.0075647861. The cubic root of 401081032 is about 737.4694619932.

The spelling of 401081032 in words is "four hundred one million, eighty-one thousand, thirty-two".