20464353 has 32 divisors (see below), whose sum is σ = 37318400. Its totient is φ = 10793088.

The previous prime is 20464351. The next prime is 20464357. The reversal of 20464353 is 35346402.

It is not a de Polignac number, because 20464353 - 2¹ = 20464351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20464351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1708 + ... + 6621.

It is an arithmetic number, because the mean of its divisors is an integer number (1166200).

Almost surely, 2^20464353 is an apocalyptic number.

It is an amenable number.

20464353 is a deficient number, since it is larger than the sum of its proper divisors (16854047).

20464353 is a wasteful number, since it uses less digits than its factorization.

20464353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358 (or 8352 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 20464353 is about 4523.7543036730. The cubic root of 20464353 is about 273.5264566492.

The spelling of 20464353 in words is "twenty million, four hundred sixty-four thousand, three hundred fifty-three".