1620208 has 20 divisors (see below), whose sum is σ = 3167208. Its totient is φ = 802880.

The previous prime is 1620161. The next prime is 1620209. The reversal of 1620208 is 8020261.

It is a happy number.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710 + ... + 2482.

2^1620208 is an apocalyptic number.

It is an amenable number.

1620208 is a deficient number, since it is larger than the sum of its proper divisors (1547000).

1620208 is a wasteful number, since it uses less digits than its factorization.

1620208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1620208 is about 1272.8739136301. The cubic root of 1620208 is about 117.4510555167.

Adding to 1620208 its reverse (8020261), we get a palindrome (9640469).

The spelling of 1620208 in words is "one million, six hundred twenty thousand, two hundred eight".