402316546 has 4 divisors (see below), whose sum is σ = 603474822. Its totient is φ = 201158272.

The previous prime is 402316513. The next prime is 402316547. The reversal of 402316546 is 645613204.

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., 201952521 + 200364025 = 14211^2 + 14155^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (402316547) 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, 100579135 + ... + 100579138.

Almost surely, 2^402316546 is an apocalyptic number.

402316546 is a deficient number, since it is larger than the sum of its proper divisors (201158276).

402316546 is a wasteful number, since it uses less digits than its factorization.

402316546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201158275.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 402316546 is about 20057.8300421556. The cubic root of 402316546 is about 738.2259341099.

The spelling of 402316546 in words is "four hundred two million, three hundred sixteen thousand, five hundred forty-six".