20346453 has 6 divisors (see below), whose sum is σ = 29389334. Its totient is φ = 13564296.

The previous prime is 20346451. The next prime is 20346457. The reversal of 20346453 is 35464302.

20346453 is a `hidden beast` number, since 203 + 4 + 6 + 453 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20007729 + 338724 = 4473^2 + 582^2 .

It is not a de Polignac number, because 20346453 - 2¹ = 20346451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1130350 + ... + 1130367.

Almost surely, 2^20346453 is an apocalyptic number.

It is an amenable number.

20346453 is a deficient number, since it is larger than the sum of its proper divisors (9042881).

20346453 is a wasteful number, since it uses less digits than its factorization.

20346453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260723 (or 2260720 counting only the distinct ones).

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

The square root of 20346453 is about 4510.7042687368. The cubic root of 20346453 is about 273.0001610111. Note that the first 3 decimals are identical.

It can be divided in two parts, 203 and 46453, that added together give a 6-th power (46656 = 6⁶).

The spelling of 20346453 in words is "twenty million, three hundred forty-six thousand, four hundred fifty-three".