20386950 has 24 divisors (see below), whose sum is σ = 50560008. Its totient is φ = 5436480.

The previous prime is 20386937. The next prime is 20386957. The reversal of 20386950 is 5968302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67807 + ... + 68106.

It is an arithmetic number, because the mean of its divisors is an integer number (2106667).

Almost surely, 2^20386950 is an apocalyptic number.

20386950 is an abundant number, since it is smaller than the sum of its proper divisors (30173058).

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

20386950 is a wasteful number, since it uses less digits than its factorization.

20386950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135928 (or 135923 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20386950 is about 4515.1910258593. The cubic root of 20386950 is about 273.1811648883.

It can be divided in two parts, 203 and 86950, that added together give a triangular number (87153 = T₄₁₇).

The spelling of 20386950 in words is "twenty million, three hundred eighty-six thousand, nine hundred fifty".