1156628 has 24 divisors (see below), whose sum is σ = 2239104. Its totient is φ = 518400.

The previous prime is 1156627. The next prime is 1156633. The reversal of 1156628 is 8266511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1156628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4133 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (93296).

2^1156628 is an apocalyptic number.

It is an amenable number.

1156628 is a deficient number, since it is larger than the sum of its proper divisors (1082476).

1156628 is a wasteful number, since it uses less digits than its factorization.

1156628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 381 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 1156628 is about 1075.4664104471. The cubic root of 1156628 is about 104.9698477292.

The spelling of 1156628 in words is "one million, one hundred fifty-six thousand, six hundred twenty-eight".