401325210 has 96 divisors (see below), whose sum is σ = 1225905408. Its totient is φ = 89804160.

The previous prime is 401325209. The next prime is 401325271. The reversal of 401325210 is 12523104.

401325210 is a `hidden beast` number, since 401 + 3 + 252 + 10 = 666.

It is a super-2 number, since 2×401325210² = 322123848363088200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 2722 + ... + 28461.

It is an arithmetic number, because the mean of its divisors is an integer number (12769848).

Almost surely, 2^401325210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401325210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612952704).

401325210 is an abundant number, since it is smaller than the sum of its proper divisors (824580198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401325210 is a wasteful number, since it uses less digits than its factorization.

401325210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31220 (or 31217 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 401325210 is about 20033.1028550247. The cubic root of 401325210 is about 737.6190886882.

Adding to 401325210 its reverse (12523104), we get a palindrome (413848314).

The spelling of 401325210 in words is "four hundred one million, three hundred twenty-five thousand, two hundred ten".