20085454 has 8 divisors (see below), whose sum is σ = 30149280. Its totient is φ = 10035696.

The previous prime is 20085397. The next prime is 20085467. The reversal of 20085454 is 45458002.

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

It is a super-2 number, since 2×20085454² = 806850924772232, which contains 22 as substring.

It is a congruent number.

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, 1467 + ... + 6505.

It is an arithmetic number, because the mean of its divisors is an integer number (3768660).

Almost surely, 2^20085454 is an apocalyptic number.

20085454 is a deficient number, since it is larger than the sum of its proper divisors (10063826).

20085454 is a wasteful number, since it uses less digits than its factorization.

20085454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 20085454 is about 4481.6798189964. The cubic root of 20085454 is about 271.8278087643.

The spelling of 20085454 in words is "twenty million, eighty-five thousand, four hundred fifty-four".