283061240 has 192 divisors, whose sum is σ = 851990400. Its totient is φ = 83462400.

The previous prime is 283061239. The next prime is 283061249. The reversal of 283061240 is 42160382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283061249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 409295 + ... + 409985.

It is an arithmetic number, because the mean of its divisors is an integer number (4437450).

Almost surely, 2^283061240 is an apocalyptic number.

283061240 is a gapful number since it is divisible by the number (20) 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 283061240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425995200).

283061240 is an abundant number, since it is smaller than the sum of its proper divisors (568929160).

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

283061240 is a wasteful number, since it uses less digits than its factorization.

283061240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 283061240 is about 16824.4239128714. The cubic root of 283061240 is about 656.5887969138.

The spelling of 283061240 in words is "two hundred eighty-three million, sixty-one thousand, two hundred forty".