208189472 has 48 divisors (see below), whose sum is σ = 424079712. Its totient is φ = 100538880.

The previous prime is 208189469. The next prime is 208189477. The reversal of 208189472 is 274981802.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (208189477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139643 + ... + 141125.

It is an arithmetic number, because the mean of its divisors is an integer number (8834994).

Almost surely, 2^208189472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208189472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212039856).

208189472 is an abundant number, since it is smaller than the sum of its proper divisors (215890240).

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

208189472 is a wasteful number, since it uses less digits than its factorization.

208189472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 208189472 is about 14428.7723663519. The cubic root of 208189472 is about 592.6790661509.

The spelling of 208189472 in words is "two hundred eight million, one hundred eighty-nine thousand, four hundred seventy-two".