401205320 has 16 divisors (see below), whose sum is σ = 902712060. Its totient is φ = 160482112.

The previous prime is 401205281. The next prime is 401205323. The reversal of 401205320 is 23502104.

It can be written as a sum of positive squares in 2 ways, for example, as 390694756 + 10510564 = 19766^2 + 3242^2 .

It is not an unprimeable number, because it can be changed into a prime (401205323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5015027 + ... + 5015106.

Almost surely, 2^401205320 is an apocalyptic number.

401205320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401205320 is an abundant number, since it is smaller than the sum of its proper divisors (501506740).

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

401205320 is a wasteful number, since it uses less digits than its factorization.

401205320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030144 (or 10030140 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 401205320 is about 20030.1103341944. The cubic root of 401205320 is about 737.5456304239.

Adding to 401205320 its reverse (23502104), we get a palindrome (424707424).

The spelling of 401205320 in words is "four hundred one million, two hundred five thousand, three hundred twenty".