20086461 has 40 divisors (see below), whose sum is σ = 31518080. Its totient is φ = 12737088.

The previous prime is 20086457. The next prime is 20086471. The reversal of 20086461 is 16468002.

20086461 = T₂₇₉ + T₂₈₀ + ... + T₅₂₁.

It is not a de Polignac number, because 20086461 - 2² = 20086457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20086421) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 254220 + ... + 254298.

It is an arithmetic number, because the mean of its divisors is an integer number (787952).

Almost surely, 2^20086461 is an apocalyptic number.

It is an amenable number.

20086461 is a deficient number, since it is larger than the sum of its proper divisors (11431619).

20086461 is an equidigital number, since it uses as much as digits as its factorization.

20086461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20086461 is about 4481.7921638559. The cubic root of 20086461 is about 271.8323514552.

The spelling of 20086461 in words is "twenty million, eighty-six thousand, four hundred sixty-one".