401440230 has 24 divisors (see below), whose sum is σ = 1043744832. Its totient is φ = 107050704.

The previous prime is 401440163. The next prime is 401440279. The reversal of 401440230 is 32044104.

It is a super-2 number, since 2×401440230² = 322308516524905800, 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2230134 + ... + 2230313.

It is an arithmetic number, because the mean of its divisors is an integer number (43489368).

Almost surely, 2^401440230 is an apocalyptic number.

401440230 is an abundant number, since it is smaller than the sum of its proper divisors (642304602).

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

401440230 is a wasteful number, since it uses less digits than its factorization.

401440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4460460 (or 4460457 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 401440230 is about 20035.9733978661. The cubic root of 401440230 is about 737.6895492869.

Adding to 401440230 its reverse (32044104), we get a palindrome (433484334).

It can be divided in two parts, 4014 and 40230, that added together give a palindrome (44244).

The spelling of 401440230 in words is "four hundred one million, four hundred forty thousand, two hundred thirty".