283530240 has 352 divisors, whose sum is σ = 1155490560. Its totient is φ = 64585728.

The previous prime is 283530239. The next prime is 283530251. The reversal of 283530240 is 42035382.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 967534 + ... + 967826.

Almost surely, 2^283530240 is an apocalyptic number.

283530240 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 283530240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577745280).

283530240 is an abundant number, since it is smaller than the sum of its proper divisors (871960320).

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

283530240 is a wasteful number, since it uses less digits than its factorization.

283530240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 283530240 is about 16838.3562143102. The cubic root of 283530240 is about 656.9512275882.

The spelling of 283530240 in words is "two hundred eighty-three million, five hundred thirty thousand, two hundred forty".