283053440 has 32 divisors (see below), whose sum is σ = 676676160. Its totient is φ = 113221120.

The previous prime is 283053439. The next prime is 283053527. The reversal of 283053440 is 44350382.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220496 + ... + 221775.

It is an arithmetic number, because the mean of its divisors is an integer number (21146130).

Almost surely, 2^283053440 is an apocalyptic number.

283053440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283053440 is an abundant number, since it is smaller than the sum of its proper divisors (393622720).

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

283053440 is an equidigital number, since it uses as much as digits as its factorization.

283053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442290 (or 442278 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 283053440 is about 16824.1921054177. The cubic root of 283053440 is about 656.5827658989.

The spelling of 283053440 in words is "two hundred eighty-three million, fifty-three thousand, four hundred forty".