20277466 has 8 divisors (see below), whose sum is σ = 33181344. Its totient is φ = 9217020.

The previous prime is 20277461. The next prime is 20277469. The reversal of 20277466 is 66477202.

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

It is a super-2 number, since 2×20277466² = 822351254762312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20277461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460830 + ... + 460873.

It is an arithmetic number, because the mean of its divisors is an integer number (4147668).

Almost surely, 2^20277466 is an apocalyptic number.

20277466 is a deficient number, since it is larger than the sum of its proper divisors (12903878).

20277466 is a wasteful number, since it uses less digits than its factorization.

20277466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921716.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 20277466 is about 4503.0507436626. The cubic root of 20277466 is about 272.6912654348.

The spelling of 20277466 in words is "twenty million, two hundred seventy-seven thousand, four hundred sixty-six".