20546090 has 8 divisors (see below), whose sum is σ = 36982980. Its totient is φ = 8218432.

The previous prime is 20546089. The next prime is 20546129. The reversal of 20546090 is 9064502.

It can be written as a sum of positive squares in 2 ways, for example, as 20529961 + 16129 = 4531^2 + 127^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027295 + ... + 1027314.

Almost surely, 2^20546090 is an apocalyptic number.

20546090 is a deficient number, since it is larger than the sum of its proper divisors (16436890).

20546090 is a wasteful number, since it uses less digits than its factorization.

20546090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054616.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 20546090 is about 4532.7795004831. The cubic root of 20546090 is about 273.8901383493.

The spelling of 20546090 in words is "twenty million, five hundred forty-six thousand, ninety".