283945309900 has 144 divisors (see below), whose sum is σ = 731320581376. Its totient is φ = 93668762880.

The previous prime is 283945309897. The next prime is 283945309903. The reversal of 283945309900 is 9903549382.

It is an interprime number because it is at equal distance from previous prime (283945309897) and next prime (283945309903).

It is not an unprimeable number, because it can be changed into a prime (283945309903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1946302 + ... + 2087098.

Almost surely, 2^283945309900 is an apocalyptic number.

283945309900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283945309900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365660290688).

283945309900 is an abundant number, since it is smaller than the sum of its proper divisors (447375271476).

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

283945309900 is a wasteful number, since it uses less digits than its factorization.

283945309900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140928 (or 140921 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 283945309900 in words is "two hundred eighty-three billion, nine hundred forty-five million, three hundred nine thousand, nine hundred".