282974940 has 36 divisors (see below), whose sum is σ = 858357864. Its totient is φ = 75459936.

The previous prime is 282974933. The next prime is 282974977. The reversal of 282974940 is 49479282.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785862 + ... + 786221.

It is an arithmetic number, because the mean of its divisors is an integer number (23843274).

Almost surely, 2^282974940 is an apocalyptic number.

282974940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282974940 is an abundant number, since it is smaller than the sum of its proper divisors (575382924).

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

282974940 is a wasteful number, since it uses less digits than its factorization.

282974940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572098 (or 1572093 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 282974940 is about 16821.8589935833. The cubic root of 282974940 is about 656.5220629770.

The spelling of 282974940 in words is "two hundred eighty-two million, nine hundred seventy-four thousand, nine hundred forty".