20950670 has 16 divisors (see below), whose sum is σ = 40612320. Its totient is φ = 7735584.

The previous prime is 20950663. The next prime is 20950687. The reversal of 20950670 is 7605902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80450 + ... + 80709.

It is an arithmetic number, because the mean of its divisors is an integer number (2538270).

Almost surely, 2^20950670 is an apocalyptic number.

20950670 is a deficient number, since it is larger than the sum of its proper divisors (19661650).

20950670 is a wasteful number, since it uses less digits than its factorization.

20950670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161179.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 20950670 is about 4577.1901861295. The cubic root of 20950670 is about 275.6762201213.

The spelling of 20950670 in words is "twenty million, nine hundred fifty thousand, six hundred seventy".