20893070 has 48 divisors (see below), whose sum is σ = 42747264. Its totient is φ = 7339200.

The previous prime is 20893043. The next prime is 20893073. The reversal of 20893070 is 7039802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20893073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37232 + ... + 37788.

It is an arithmetic number, because the mean of its divisors is an integer number (890568).

Almost surely, 2^20893070 is an apocalyptic number.

20893070 is an abundant number, since it is smaller than the sum of its proper divisors (21854194).

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

20893070 is a wasteful number, since it uses less digits than its factorization.

20893070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20893070 is about 4570.8937856835. The cubic root of 20893070 is about 275.4233479438.

The spelling of 20893070 in words is "twenty million, eight hundred ninety-three thousand, seventy".