20751082 has 8 divisors (see below), whose sum is σ = 33956352. Its totient is φ = 9432300.

The previous prime is 20751077. The next prime is 20751089. The reversal of 20751082 is 28015702.

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

It is not an unprimeable number, because it can be changed into a prime (20751089) 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, 471594 + ... + 471637.

It is an arithmetic number, because the mean of its divisors is an integer number (4244544).

Almost surely, 2^20751082 is an apocalyptic number.

20751082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20751082 is a deficient number, since it is larger than the sum of its proper divisors (13205270).

20751082 is a wasteful number, since it uses less digits than its factorization.

20751082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943244.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 20751082 is about 4555.3355529533. The cubic root of 20751082 is about 274.7980092475.

Adding to 20751082 its reverse (28015702), we get a palindrome (48766784).

The spelling of 20751082 in words is "twenty million, seven hundred fifty-one thousand, eighty-two".