1142680 has 96 divisors (see below), whose sum is σ = 3324240. Its totient is φ = 349440.

The previous prime is 1142677. The next prime is 1142693. The reversal of 1142680 is 862411.

1142680 = T₁₄ + T₁₅ + ... + T₁₈₉.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21534 + ... + 21586.

2^1142680 is an apocalyptic number.

1142680 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 1142680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1662120).

1142680 is an abundant number, since it is smaller than the sum of its proper divisors (2181560).

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

1142680 is a wasteful number, since it uses less digits than its factorization.

1142680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1142680 is about 1068.9621134540. The cubic root of 1142680 is about 104.5461896036.

The spelling of 1142680 in words is "one million, one hundred forty-two thousand, six hundred eighty".