283791420 has 72 divisors (see below), whose sum is σ = 939098160. Its totient is φ = 68797440.

The previous prime is 283791401. The next prime is 283791451. The reversal of 283791420 is 24197382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69685 + ... + 73644.

It is an arithmetic number, because the mean of its divisors is an integer number (13043030).

Almost surely, 2^283791420 is an apocalyptic number.

283791420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283791420 is an abundant number, since it is smaller than the sum of its proper divisors (655306740).

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

283791420 is a wasteful number, since it uses less digits than its factorization.

283791420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143355 (or 143350 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 283791420 is about 16846.1099367183. The cubic root of 283791420 is about 657.1528872805.

The spelling of 283791420 in words is "two hundred eighty-three million, seven hundred ninety-one thousand, four hundred twenty".