283556140 has 36 divisors (see below), whose sum is σ = 692689536. Its totient is φ = 97218912.

The previous prime is 283556131. The next prime is 283556149. The reversal of 283556140 is 41655382.

It is an interprime number because it is at equal distance from previous prime (283556131) and next prime (283556149).

It is a junction number, because it is equal to n+sod(n) for n = 283556096 and 283556105.

It is not an unprimeable number, because it can be changed into a prime (283556149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143692 + ... + 145651.

It is an arithmetic number, because the mean of its divisors is an integer number (19241376).

Almost surely, 2^283556140 is an apocalyptic number.

283556140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283556140 is an abundant number, since it is smaller than the sum of its proper divisors (409133396).

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

283556140 is a wasteful number, since it uses less digits than its factorization.

283556140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289366 (or 289357 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 283556140 is about 16839.1252741940. The cubic root of 283556140 is about 656.9712307675.

The spelling of 283556140 in words is "two hundred eighty-three million, five hundred fifty-six thousand, one hundred forty".