401124421 has 4 divisors (see below), whose sum is σ = 407923200. Its totient is φ = 394325644.

The previous prime is 401124419. The next prime is 401124463. The reversal of 401124421 is 124421104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401124421 - 2¹ = 401124419 is a prime.

It is a super-2 number, since 2×401124421² = 321801602245170482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401124121) 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, 3399301 + ... + 3399418.

It is an arithmetic number, because the mean of its divisors is an integer number (101980800).

Almost surely, 2^401124421 is an apocalyptic number.

It is an amenable number.

401124421 is a deficient number, since it is larger than the sum of its proper divisors (6798779).

401124421 is an equidigital number, since it uses as much as digits as its factorization.

401124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798778.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 401124421 is about 20028.0907976771. The cubic root of 401124421 is about 737.4960542162.

Adding to 401124421 its reverse (124421104), we get a palindrome (525545525).

The spelling of 401124421 in words is "four hundred one million, one hundred twenty-four thousand, four hundred twenty-one".