283025778 has 32 divisors (see below), whose sum is σ = 648030336. Its totient is φ = 80725248.

The previous prime is 283025759. The next prime is 283025779. The reversal of 283025778 is 877520382.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (283025779) 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, 20250 + ... + 31242.

It is an arithmetic number, because the mean of its divisors is an integer number (20250948).

Almost surely, 2^283025778 is an apocalyptic number.

283025778 is an abundant number, since it is smaller than the sum of its proper divisors (365004558).

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

283025778 is a wasteful number, since it uses less digits than its factorization.

283025778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11618.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 283025778 is about 16823.3699953368. The cubic root of 283025778 is about 656.5613765526.

The spelling of 283025778 in words is "two hundred eighty-three million, twenty-five thousand, seven hundred seventy-eight".