1290228 has 24 divisors (see below), whose sum is σ = 3050880. Its totient is φ = 424320.

The previous prime is 1290209. The next prime is 1290257. The reversal of 1290228 is 8220921.

It is a junction number, because it is equal to n+sod(n) for n = 1290198 and 1290207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268 + ... + 1628.

It is an arithmetic number, because the mean of its divisors is an integer number (127120).

2^1290228 is an apocalyptic number.

It is an amenable number.

1290228 is an abundant number, since it is smaller than the sum of its proper divisors (1760652).

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

1290228 is a wasteful number, since it uses less digits than its factorization.

1290228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1290228 is about 1135.8820361288. The cubic root of 1290228 is about 108.8651363496.

The spelling of 1290228 in words is "one million, two hundred ninety thousand, two hundred twenty-eight".