20867950 has 24 divisors (see below), whose sum is σ = 38939472. Its totient is φ = 8320320.

The previous prime is 20867933. The next prime is 20867971. The reversal of 20867950 is 5976802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23922 + ... + 24778.

It is an arithmetic number, because the mean of its divisors is an integer number (1622478).

Almost surely, 2^20867950 is an apocalyptic number.

20867950 is a deficient number, since it is larger than the sum of its proper divisors (18071522).

20867950 is a wasteful number, since it uses less digits than its factorization.

20867950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 20867950 is about 4568.1451377994. The cubic root of 20867950 is about 275.3129220284.

The spelling of 20867950 in words is "twenty million, eight hundred sixty-seven thousand, nine hundred fifty".