20460670 has 16 divisors (see below), whose sum is σ = 37007568. Its totient is φ = 8144640.

The previous prime is 20460653. The next prime is 20460677. The reversal of 20460670 is 7606402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460677) 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 7 ways as a sum of consecutive naturals, for example, 2739 + ... + 6958.

It is an arithmetic number, because the mean of its divisors is an integer number (2312973).

Almost surely, 2^20460670 is an apocalyptic number.

20460670 is a deficient number, since it is larger than the sum of its proper divisors (16546898).

20460670 is a wasteful number, since it uses less digits than its factorization.

20460670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20460670 is about 4523.3472119659. The cubic root of 20460670 is about 273.5100466772.

The spelling of 20460670 in words is "twenty million, four hundred sixty thousand, six hundred seventy".