20074545 has 48 divisors (see below), whose sum is σ = 37402560. Its totient is φ = 9929088.

The previous prime is 20074541. The next prime is 20074547. The reversal of 20074545 is 54547002.

20074545 is a `hidden beast` number, since 200 + 7 + 454 + 5 = 666.

It is not a de Polignac number, because 20074545 - 2² = 20074541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20074541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45094 + ... + 45536.

It is an arithmetic number, because the mean of its divisors is an integer number (779220).

Almost surely, 2^20074545 is an apocalyptic number.

It is an amenable number.

20074545 is a deficient number, since it is larger than the sum of its proper divisors (17328015).

20074545 is a wasteful number, since it uses less digits than its factorization.

20074545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 20074545 is about 4480.4625877246. The cubic root of 20074545 is about 271.7785872964.

The spelling of 20074545 in words is "twenty million, seventy-four thousand, five hundred forty-five".