401002024 has 16 divisors (see below), whose sum is σ = 777806100. Its totient is φ = 193587072.

The previous prime is 401002013. The next prime is 401002027. The reversal of 401002024 is 420200104.

It can be written as a sum of positive squares in 2 ways, for example, as 379080900 + 21921124 = 19470^2 + 4682^2 .

It is a junction number, because it is equal to n+sod(n) for n = 401001995 and 401002013.

It is not an unprimeable number, because it can be changed into a prime (401002027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863997 + ... + 864460.

Almost surely, 2^401002024 is an apocalyptic number.

It is an amenable number.

401002024 is a deficient number, since it is larger than the sum of its proper divisors (376804076).

401002024 is a wasteful number, since it uses less digits than its factorization.

401002024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728492 (or 1728488 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 401002024 is about 20025.0349313054. The cubic root of 401002024 is about 737.4210346939.

Adding to 401002024 its reverse (420200104), we get a palindrome (821202128).

It can be divided in two parts, 40100 and 2024, that added together give a palindrome (42124).

The spelling of 401002024 in words is "four hundred one million, two thousand, twenty-four".