208422072 has 96 divisors (see below), whose sum is σ = 605732400. Its totient is φ = 67060224.

The previous prime is 208422029. The next prime is 208422103. The reversal of 208422072 is 270224802.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54528 + ... + 58224.

Almost surely, 2^208422072 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 208422072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302866200).

208422072 is an abundant number, since it is smaller than the sum of its proper divisors (397310328).

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

208422072 is a wasteful number, since it uses less digits than its factorization.

208422072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747 (or 3731 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 208422072 is about 14436.8304000567. The cubic root of 208422072 is about 592.8997078592.

Adding to 208422072 its reverse (270224802), we get a palindrome (478646874).

The spelling of 208422072 in words is "two hundred eight million, four hundred twenty-two thousand, seventy-two".