1141680 has 80 divisors (see below), whose sum is σ = 3642624. Its totient is φ = 295680.

The previous prime is 1141667. The next prime is 1141717. The reversal of 1141680 is 861411.

1141680 = T₄₉ + T₅₀ + ... + T₁₉₀.

It is a tau number, because it is divible by the number of its divisors (80).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16045 + ... + 16115.

2^1141680 is an apocalyptic number.

1141680 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 1141680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821312).

1141680 is an abundant number, since it is smaller than the sum of its proper divisors (2500944).

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

1141680 is a wasteful number, since it uses less digits than its factorization.

1141680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1141680 is about 1068.4942676496. The cubic root of 1141680 is about 104.5156833371.

The spelling of 1141680 in words is "one million, one hundred forty-one thousand, six hundred eighty".