20745058 has 8 divisors (see below), whose sum is σ = 31187052. Its totient is φ = 10349376.

The previous prime is 20745047. The next prime is 20745059. The reversal of 20745058 is 85054702.

It can be written as a sum of positive squares in 2 ways, for example, as 20187049 + 558009 = 4493^2 + 747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20745059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10435 + ... + 12262.

Almost surely, 2^20745058 is an apocalyptic number.

20745058 is a deficient number, since it is larger than the sum of its proper divisors (10441994).

20745058 is a wasteful number, since it uses less digits than its factorization.

20745058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23156.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 20745058 is about 4554.6743022965. The cubic root of 20745058 is about 274.7714155592.

The spelling of 20745058 in words is "twenty million, seven hundred forty-five thousand, fifty-eight".