402208 has 12 divisors (see below), whose sum is σ = 791910. Its totient is φ = 201088.

The previous prime is 402197. The next prime is 402221. The reversal of 402208 is 802204.

It can be written as a sum of positive squares in only one way, i.e., 219024 + 183184 = 468^2 + 428^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 402191 and 402200.

It is an unprimeable number.

402208 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253 + ... + 6316.

2⁴⁰²²⁰⁸ is an apocalyptic number.

It is an amenable number.

402208 is a deficient number, since it is larger than the sum of its proper divisors (389702).

402208 is a wasteful number, since it uses less digits than its factorization.

402208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12579 (or 12571 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 402208 is about 634.1987070312. The cubic root of 402208 is about 73.8159536410.

The spelling of 402208 in words is "four hundred two thousand, two hundred eight".