402350258 has 4 divisors (see below), whose sum is σ = 603525390. Its totient is φ = 201175128.

The previous prime is 402350257. The next prime is 402350303. The reversal of 402350258 is 852053204.

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

It can be written as a sum of positive squares in only one way, i.e., 250493929 + 151856329 = 15827^2 + 12323^2 .

It is a super-4 number, since 4×402350258⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 402350258.

It is not an unprimeable number, because it can be changed into a prime (402350257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100587563 + ... + 100587566.

Almost surely, 2^402350258 is an apocalyptic number.

402350258 is a deficient number, since it is larger than the sum of its proper divisors (201175132).

402350258 is a wasteful number, since it uses less digits than its factorization.

402350258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201175131.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 402350258 is about 20058.6703946199. The cubic root of 402350258 is about 738.2465533444.

The spelling of 402350258 in words is "four hundred two million, three hundred fifty thousand, two hundred fifty-eight".