401210252 has 24 divisors (see below), whose sum is σ = 739384800. Its totient is φ = 190118016.

The previous prime is 401210231. The next prime is 401210267. The reversal of 401210252 is 252012104.

It is a self number, because there is not a number n which added to its sum of digits gives 401210252.

It is an unprimeable number.

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, 9977 + ... + 30032.

It is an arithmetic number, because the mean of its divisors is an integer number (30807700).

Almost surely, 2^401210252 is an apocalyptic number.

It is an amenable number.

401210252 is a deficient number, since it is larger than the sum of its proper divisors (338174548).

401210252 is a wasteful number, since it uses less digits than its factorization.

401210252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40145 (or 40143 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 401210252 is about 20030.2334484648. The cubic root of 401210252 is about 737.5486526172.

Adding to 401210252 its reverse (252012104), we get a palindrome (653222356).

The spelling of 401210252 in words is "four hundred one million, two hundred ten thousand, two hundred fifty-two".