20465313 has 8 divisors (see below), whose sum is σ = 29767776. Its totient is φ = 12403200.

The previous prime is 20465309. The next prime is 20465321. The reversal of 20465313 is 31356402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20465313 - 2² = 20465309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20465303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310048 + ... + 310113.

It is an arithmetic number, because the mean of its divisors is an integer number (3720972).

Almost surely, 2^20465313 is an apocalyptic number.

It is an amenable number.

20465313 is a deficient number, since it is larger than the sum of its proper divisors (9302463).

20465313 is a wasteful number, since it uses less digits than its factorization.

20465313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620175.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20465313 is about 4523.8604089870. The cubic root of 20465313 is about 273.5307337010.

The spelling of 20465313 in words is "twenty million, four hundred sixty-five thousand, three hundred thirteen".