402444195 has 16 divisors (see below), whose sum is σ = 644225280. Its totient is φ = 214532064.

The previous prime is 402444193. The next prime is 402444239. The reversal of 402444195 is 591444204.

It is not a de Polignac number, because 402444195 - 2¹ = 402444193 is a prime.

It is a super-2 number, since 2×402444195² = 323922660178396050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402444193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32802 + ... + 43368.

It is an arithmetic number, because the mean of its divisors is an integer number (40264080).

Almost surely, 2^402444195 is an apocalyptic number.

402444195 is a deficient number, since it is larger than the sum of its proper divisors (241781085).

402444195 is a wasteful number, since it uses less digits than its factorization.

402444195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13114.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 402444195 is about 20061.0118139639. The cubic root of 402444195 is about 738.3040018559.

Adding to 402444195 its reverse (591444204), we get a palindrome (993888399).

The spelling of 402444195 in words is "four hundred two million, four hundred forty-four thousand, one hundred ninety-five".