401242124 has 6 divisors (see below), whose sum is σ = 702173724. Its totient is φ = 200621060.

The previous prime is 401242123. The next prime is 401242129. The reversal of 401242124 is 421242104.

It is a junction number, because it is equal to n+sod(n) for n = 401242096 and 401242105.

It is not an unprimeable number, because it can be changed into a prime (401242123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50155262 + ... + 50155269.

It is an arithmetic number, because the mean of its divisors is an integer number (117028954).

Almost surely, 2^401242124 is an apocalyptic number.

It is an amenable number.

401242124 is a deficient number, since it is larger than the sum of its proper divisors (300931600).

401242124 is a wasteful number, since it uses less digits than its factorization.

401242124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100310535 (or 100310533 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 401242124 is about 20031.0290299825. The cubic root of 401242124 is about 737.5681823011.

Subtracting from 401242124 its sum of digits (20), we obtain a palindrome (401242104).

Adding to 401242124 its reverse (421242104), we get a palindrome (822484228).

The spelling of 401242124 in words is "four hundred one million, two hundred forty-two thousand, one hundred twenty-four".