208536432 has 80 divisors (see below), whose sum is σ = 583712640. Its totient is φ = 63772416.

The previous prime is 208536431. The next prime is 208536437. The reversal of 208536432 is 234635802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 208536393 and 208536402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208536431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110763 + ... + 112629.

It is an arithmetic number, because the mean of its divisors is an integer number (7296408).

Almost surely, 2^208536432 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 208536432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291856320).

208536432 is an abundant number, since it is smaller than the sum of its proper divisors (375176208).

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

208536432 is a wasteful number, since it uses less digits than its factorization.

208536432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 208536432 is about 14440.7905600767. The cubic root of 208536432 is about 593.0081282590.

The spelling of 208536432 in words is "two hundred eight million, five hundred thirty-six thousand, four hundred thirty-two".