283363640 has 64 divisors (see below), whose sum is σ = 753796800. Its totient is φ = 93800448.

The previous prime is 283363631. The next prime is 283363643. The reversal of 283363640 is 46363382.

It is a Harshad number since it is a multiple of its sum of digits (35).

283363640 is a Rhonda number in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 283363640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283363643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9329 + ... + 25568.

It is an arithmetic number, because the mean of its divisors is an integer number (11778075).

Almost surely, 2^283363640 is an apocalyptic number.

283363640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283363640 is an abundant number, since it is smaller than the sum of its proper divisors (470433160).

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

283363640 is a wasteful number, since it uses less digits than its factorization.

283363640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34944 (or 34940 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 283363640 is about 16833.4084486773. The cubic root of 283363640 is about 656.8225293601.

The spelling of 283363640 in words is "two hundred eighty-three million, three hundred sixty-three thousand, six hundred forty".