402405201 has 24 divisors (see below), whose sum is σ = 649565280. Its totient is φ = 237931200.

The previous prime is 402405197. The next prime is 402405233. The reversal of 402405201 is 102504204.

It is not a de Polignac number, because 402405201 - 2² = 402405197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402405251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45511 + ... + 53628.

It is an arithmetic number, because the mean of its divisors is an integer number (27065220).

Almost surely, 2^402405201 is an apocalyptic number.

402405201 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

402405201 is a deficient number, since it is larger than the sum of its proper divisors (247160079).

402405201 is a wasteful number, since it uses less digits than its factorization.

402405201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99197 (or 99194 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 402405201 is about 20060.0399052445. The cubic root of 402405201 is about 738.2801556047.

Adding to 402405201 its reverse (102504204), we get a palindrome (504909405).

The spelling of 402405201 in words is "four hundred two million, four hundred five thousand, two hundred one".