401424111 has 48 divisors (see below), whose sum is σ = 675031968. Its totient is φ = 227174400.

The previous prime is 401424073. The next prime is 401424139. The reversal of 401424111 is 111424104.

It is not a de Polignac number, because 401424111 - 2⁷ = 401423983 is a prime.

It is a super-2 number, since 2×401424111² = 322282633784280642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401424151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 229701 + ... + 231441.

It is an arithmetic number, because the mean of its divisors is an integer number (14063166).

Almost surely, 2^401424111 is an apocalyptic number.

401424111 is a deficient number, since it is larger than the sum of its proper divisors (273607857).

401424111 is a wasteful number, since it uses less digits than its factorization.

401424111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 401424111 is about 20035.5711423458. The cubic root of 401424111 is about 737.6796756900.

Adding to 401424111 its reverse (111424104), we get a palindrome (512848215).

It can be divided in two parts, 40142 and 4111, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 401424111 in words is "four hundred one million, four hundred twenty-four thousand, one hundred eleven".