20358045 has 12 divisors (see below), whose sum is σ = 35287356. Its totient is φ = 10857600.

The previous prime is 20358031. The next prime is 20358073. The reversal of 20358045 is 54085302.

It can be written as a sum of positive squares in 2 ways, for example, as 4149369 + 16208676 = 2037^2 + 4026^2 .

It is not a de Polignac number, because 20358045 - 2¹⁴ = 20341661 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226156 + ... + 226245.

It is an arithmetic number, because the mean of its divisors is an integer number (2940613).

Almost surely, 2^20358045 is an apocalyptic number.

It is an amenable number.

20358045 is a deficient number, since it is larger than the sum of its proper divisors (14929311).

20358045 is a wasteful number, since it uses less digits than its factorization.

20358045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452412 (or 452409 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 20358045 is about 4511.9890292420. The cubic root of 20358045 is about 273.0519966973.

The spelling of 20358045 in words is "twenty million, three hundred fifty-eight thousand, forty-five".