320465426 has 4 divisors (see below), whose sum is σ = 480698142. Its totient is φ = 160232712.

The previous prime is 320465423. The next prime is 320465429. The reversal of 320465426 is 624564023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624564023 = 15053 ⋅41491.

It is an interprime number because it is at equal distance from previous prime (320465423) and next prime (320465429).

It can be written as a sum of positive squares in only one way, i.e., 226472401 + 93993025 = 15049^2 + 9695^2 .

It is a super-2 number, since 2×320465426² = 205396178522722952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320465392 and 320465401.

It is not an unprimeable number, because it can be changed into a prime (320465423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80116355 + ... + 80116358.

Almost surely, 2^320465426 is an apocalyptic number.

320465426 is a deficient number, since it is larger than the sum of its proper divisors (160232716).

320465426 is a wasteful number, since it uses less digits than its factorization.

320465426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160232715.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 320465426 is about 17901.5481453421. The cubic root of 320465426 is about 684.3218293895.

The spelling of 320465426 in words is "three hundred twenty million, four hundred sixty-five thousand, four hundred twenty-six".