1230740 has 48 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 412032.

The previous prime is 1230739. The next prime is 1230743. The reversal of 1230740 is 470321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8186 + ... + 8334.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2^1230740 is an apocalyptic number.

1230740 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 1230740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512000).

1230740 is an abundant number, since it is smaller than the sum of its proper divisors (1793260).

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

1230740 is a wasteful number, since it uses less digits than its factorization.

1230740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1230740 is about 1109.3872182426. The cubic root of 1230740 is about 107.1656095596.

The spelling of 1230740 in words is "one million, two hundred thirty thousand, seven hundred forty".