20934070 has 8 divisors (see below), whose sum is σ = 37681344. Its totient is φ = 8373624.

The previous prime is 20934061. The next prime is 20934073. The reversal of 20934070 is 7043902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20934073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046694 + ... + 1046713.

It is an arithmetic number, because the mean of its divisors is an integer number (4710168).

Almost surely, 2^20934070 is an apocalyptic number.

20934070 is a deficient number, since it is larger than the sum of its proper divisors (16747274).

20934070 is a wasteful number, since it uses less digits than its factorization.

20934070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093414.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20934070 is about 4575.3764872412. The cubic root of 20934070 is about 275.6033913538.

Adding to 20934070 its reverse (7043902), we get a palindrome (27977972).

The spelling of 20934070 in words is "twenty million, nine hundred thirty-four thousand, seventy".