283161262440 has 256 divisors, whose sum is σ = 985720389120. Its totient is φ = 63737856000.

The previous prime is 283161262421. The next prime is 283161262453. The reversal of 283161262440 is 44262161382.

It is a super-2 number, since 2×283161262440² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14892940 + ... + 14911940.

It is an arithmetic number, because the mean of its divisors is an integer number (3850470270).

Almost surely, 2^283161262440 is an apocalyptic number.

283161262440 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 283161262440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492860194560).

283161262440 is an abundant number, since it is smaller than the sum of its proper divisors (702559126680).

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

283161262440 is a wasteful number, since it uses less digits than its factorization.

283161262440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19292 (or 19288 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 283161262440 in words is "two hundred eighty-three billion, one hundred sixty-one million, two hundred sixty-two thousand, four hundred forty".