20150208 has 210 divisors, whose sum is σ = 67491864. Its totient is φ = 5930496.

The previous prime is 20150197. The next prime is 20150227. The reversal of 20150208 is 80205102.

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 29 ways as a sum of consecutive naturals, for example, 876085 + ... + 876107.

Almost surely, 2^20150208 is an apocalyptic number.

20150208 is the 2592-nd octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20150208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33745932).

20150208 is an abundant number, since it is smaller than the sum of its proper divisors (47341656).

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

20150208 is a wasteful number, since it uses less digits than its factorization.

20150208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 20150208 is about 4488.8983058207. The cubic root of 20150208 is about 272.1196129054.

It can be divided in two parts, 2015020 and 8, that added together give a triangular number (2015028 = T₂₀₀₇).

The spelling of 20150208 in words is "twenty million, one hundred fifty thousand, two hundred eight".