401001024 has 28 divisors (see below), whose sum is σ = 1060982384. Its totient is φ = 133666944.

The previous prime is 401001019. The next prime is 401001037. The reversal of 401001024 is 420100104.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044082 + ... + 1044465.

It is an arithmetic number, because the mean of its divisors is an integer number (37892228).

Almost surely, 2^401001024 is an apocalyptic number.

It is an amenable number.

401001024 is an abundant number, since it is smaller than the sum of its proper divisors (659981360).

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

401001024 is a wasteful number, since it uses less digits than its factorization.

401001024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088562 (or 2088552 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 401001024 is about 20025.0099625443. The cubic root of 401001024 is about 737.4204217114.

Adding to 401001024 its reverse (420100104), we get a palindrome (821101128).

The spelling of 401001024 in words is "four hundred one million, one thousand, twenty-four".