20677046 has 32 divisors (see below), whose sum is σ = 35417088. Its totient is φ = 8981280.

The previous prime is 20677037. The next prime is 20677051. The reversal of 20677046 is 64077602.

It is a happy number.

It is a super-2 number, since 2×20677046² = 855080462572232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42215 + ... + 42701.

It is an arithmetic number, because the mean of its divisors is an integer number (1106784).

Almost surely, 2^20677046 is an apocalyptic number.

20677046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20677046 is a deficient number, since it is larger than the sum of its proper divisors (14740042).

20677046 is a wasteful number, since it uses less digits than its factorization.

20677046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 20677046 is about 4547.2019968328. The cubic root of 20677046 is about 274.4708104192.

The spelling of 20677046 in words is "twenty million, six hundred seventy-seven thousand, forty-six".