402025361 has 4 divisors (see below), whose sum is σ = 411374832. Its totient is φ = 392675892.

The previous prime is 402025331. The next prime is 402025363. The reversal of 402025361 is 163520204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402025361 - 2⁶ = 402025297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402025363) 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, 4674671 + ... + 4674756.

It is an arithmetic number, because the mean of its divisors is an integer number (102843708).

Almost surely, 2^402025361 is an apocalyptic number.

It is an amenable number.

402025361 is a deficient number, since it is larger than the sum of its proper divisors (9349471).

402025361 is an equidigital number, since it uses as much as digits as its factorization.

402025361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349470.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 402025361 is about 20050.5700916458. The cubic root of 402025361 is about 738.0477889799.

Adding to 402025361 its reverse (163520204), we get a palindrome (565545565).

The spelling of 402025361 in words is "four hundred two million, twenty-five thousand, three hundred sixty-one".