20364545 has 16 divisors (see below), whose sum is σ = 25926912. Its totient is φ = 15322560.

The previous prime is 20364527. The next prime is 20364557. The reversal of 20364545 is 54546302.

It is not a de Polignac number, because 20364545 - 2¹⁰ = 20363521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5564 + ... + 8466.

It is an arithmetic number, because the mean of its divisors is an integer number (1620432).

Almost surely, 2^20364545 is an apocalyptic number.

It is an amenable number.

20364545 is a deficient number, since it is larger than the sum of its proper divisors (5562367).

20364545 is a wasteful number, since it uses less digits than its factorization.

20364545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 20364545 is about 4512.7092749257. The cubic root of 20364545 is about 273.0810539917.

The spelling of 20364545 in words is "twenty million, three hundred sixty-four thousand, five hundred forty-five".