283404740 has 24 divisors (see below), whose sum is σ = 596787072. Its totient is φ = 113050080.

The previous prime is 283404731. The next prime is 283404743. The reversal of 283404740 is 47404382.

It is a junction number, because it is equal to n+sod(n) for n = 283404697 and 283404706.

It is not an unprimeable number, because it can be changed into a prime (283404743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11966 + ... + 26645.

It is an arithmetic number, because the mean of its divisors is an integer number (24866128).

Almost surely, 2^283404740 is an apocalyptic number.

283404740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283404740 is an abundant number, since it is smaller than the sum of its proper divisors (313382332).

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

283404740 is a wasteful number, since it uses less digits than its factorization.

283404740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38987 (or 38985 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 283404740 is about 16834.6291910455. The cubic root of 283404740 is about 656.8542837293.

The spelling of 283404740 in words is "two hundred eighty-three million, four hundred four thousand, seven hundred forty".