332402405 has 4 divisors (see below), whose sum is σ = 398882892. Its totient is φ = 265921920.

The previous prime is 332402387. The next prime is 332402407. The reversal of 332402405 is 504204233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 206267044 + 126135361 = 14362^2 + 11231^2 .

It is not a de Polignac number, because 332402405 - 2¹⁶ = 332336869 is a prime.

It is a super-2 number, since 2×332402405² = 220982717699568050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332402407) 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, 33240236 + ... + 33240245.

It is an arithmetic number, because the mean of its divisors is an integer number (99720723).

Almost surely, 2^332402405 is an apocalyptic number.

It is an amenable number.

332402405 is a deficient number, since it is larger than the sum of its proper divisors (66480487).

332402405 is an equidigital number, since it uses as much as digits as its factorization.

332402405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66480486.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 332402405 is about 18231.9062360467. The cubic root of 332402405 is about 692.7152028751.

Adding to 332402405 its reverse (504204233), we get a palindrome (836606638).

The spelling of 332402405 in words is "three hundred thirty-two million, four hundred two thousand, four hundred five".