401241020 has 24 divisors (see below), whose sum is σ = 843460800. Its totient is φ = 160333632.

The previous prime is 401240999. The next prime is 401241023. The reversal of 401241020 is 20142104.

It is a super-2 number, since 2×401241020² = 321988712261280800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401240986 and 401241004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401241023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11126 + ... + 30434.

It is an arithmetic number, because the mean of its divisors is an integer number (35144200).

Almost surely, 2^401241020 is an apocalyptic number.

It is an amenable number.

401241020 is an abundant number, since it is smaller than the sum of its proper divisors (442219780).

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

401241020 is a wasteful number, since it uses less digits than its factorization.

401241020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20357 (or 20355 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 401241020 is about 20031.0014727172. The cubic root of 401241020 is about 737.5675058384.

Adding to 401241020 its reverse (20142104), we get a palindrome (421383124).

The spelling of 401241020 in words is "four hundred one million, two hundred forty-one thousand, twenty".