401123330 has 24 divisors (see below), whose sum is σ = 766997748. Its totient is φ = 151010048.

The previous prime is 401123311. The next prime is 401123339. The reversal of 401123330 is 33321104.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 374693449 + 26429881 = 19357^2 + 5141^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 401123299 and 401123308.

It is not an unprimeable number, because it can be changed into a prime (401123339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66509 + ... + 72288.

Almost surely, 2^401123330 is an apocalyptic number.

401123330 is a deficient number, since it is larger than the sum of its proper divisors (365874418).

401123330 is a wasteful number, since it uses less digits than its factorization.

401123330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138838 (or 138821 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 401123330 is about 20028.0635609137. The cubic root of 401123330 is about 737.4953855883.

Adding to 401123330 its reverse (33321104), we get a palindrome (434444434).

The spelling of 401123330 in words is "four hundred one million, one hundred twenty-three thousand, three hundred thirty".