1156456 has 32 divisors (see below), whose sum is σ = 2514240. Its totient is φ = 488448.

The previous prime is 1156453. The next prime is 1156457. The reversal of 1156456 is 6546511.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156451) 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, 5896 + ... + 6088.

It is an arithmetic number, because the mean of its divisors is an integer number (78570).

2^1156456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257120).

1156456 is an abundant number, since it is smaller than the sum of its proper divisors (1357784).

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

1156456 is a wasteful number, since it uses less digits than its factorization.

1156456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 309 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 1156456 is about 1075.3864421686. The cubic root of 1156456 is about 104.9646441809.

The spelling of 1156456 in words is "one million, one hundred fifty-six thousand, four hundred fifty-six".