1228408 has 16 divisors (see below), whose sum is σ = 2328480. Its totient is φ = 607488.

The previous prime is 1228399. The next prime is 1228429. The reversal of 1228408 is 8048221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (145530).

2^1228408 is an apocalyptic number.

It is an amenable number.

1228408 is a deficient number, since it is larger than the sum of its proper divisors (1100072).

1228408 is a wasteful number, since it uses less digits than its factorization.

1228408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 1228408 is about 1108.3356892206. The cubic root of 1228408 is about 107.0978811440.

The spelling of 1228408 in words is "one million, two hundred twenty-eight thousand, four hundred eight".