20612070 has 40 divisors (see below), whose sum is σ = 55425744. Its totient is φ = 5496336.

The previous prime is 20612027. The next prime is 20612089. The reversal of 20612070 is 7021602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 19 ways as a sum of consecutive naturals, for example, 11914 + ... + 13533.

Almost surely, 2^20612070 is an apocalyptic number.

20612070 is an abundant number, since it is smaller than the sum of its proper divisors (34813674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20612070 is a wasteful number, since it uses less digits than its factorization.

20612070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25466 (or 25457 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20612070 is about 4540.0517618195. The cubic root of 20612070 is about 274.1830077237.

Adding to 20612070 its reverse (7021602), we get a palindrome (27633672).

The spelling of 20612070 in words is "twenty million, six hundred twelve thousand, seventy".