401323230 has 144 divisors (see below), whose sum is σ = 1324303344. Its totient is φ = 83381760.

The previous prime is 401323193. The next prime is 401323231. The reversal of 401323230 is 32323104.

401323230 is a `hidden beast` number, since 401 + 3 + 232 + 30 = 666.

It is a super-2 number, since 2×401323230² = 322120669875265800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401323231) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 44374 + ... + 52646.

It is an arithmetic number, because the mean of its divisors is an integer number (9196551).

Almost surely, 2^401323230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401323230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662151672).

401323230 is an abundant number, since it is smaller than the sum of its proper divisors (922980114).

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

401323230 is a wasteful number, since it uses less digits than its factorization.

401323230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311 (or 8301 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 401323230 is about 20033.0534367580. The cubic root of 401323230 is about 737.6178756335.

Adding to 401323230 its reverse (32323104), we get a palindrome (433646334).

The spelling of 401323230 in words is "four hundred one million, three hundred twenty-three thousand, two hundred thirty".