402250361 has 4 divisors (see below), whose sum is σ = 402973092. Its totient is φ = 401527632.

The previous prime is 402250351. The next prime is 402250391. The reversal of 402250361 is 163052204.

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 34339600 + 367910761 = 5860^2 + 19181^2 .

It is a cyclic number.

It is not a de Polignac number, because 402250361 - 2⁶ = 402250297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402250351) 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, 360530 + ... + 361643.

It is an arithmetic number, because the mean of its divisors is an integer number (100743273).

Almost surely, 2^402250361 is an apocalyptic number.

It is an amenable number.

402250361 is a deficient number, since it is larger than the sum of its proper divisors (722731).

402250361 is an equidigital number, since it uses as much as digits as its factorization.

402250361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722730.

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

The square root of 402250361 is about 20056.1801198533. The cubic root of 402250361 is about 738.1854500985.

The spelling of 402250361 in words is "four hundred two million, two hundred fifty thousand, three hundred sixty-one".