1156480 has 64 divisors (see below), whose sum is σ = 2998800. Its totient is φ = 423936.

The previous prime is 1156457. The next prime is 1156483. The reversal of 1156480 is 846511.

1156480 = T₆₃ + T₆₄ + ... + T₁₉₂.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×1156480³ = 4640188616933376000, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8251 + ... + 8389.

2^1156480 is an apocalyptic number.

1156480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499400).

1156480 is an abundant number, since it is smaller than the sum of its proper divisors (1842320).

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

1156480 is a wasteful number, since it uses less digits than its factorization.

1156480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1156480 is about 1075.3976008900. The cubic root of 1156480 is about 104.9653702884.

The spelling of 1156480 in words is "one million, one hundred fifty-six thousand, four hundred eighty".