42783246 has 48 divisors (see below), whose sum is σ = 101790000. Its totient is φ = 12879360.

The previous prime is 42783241. The next prime is 42783253. The reversal of 42783246 is 64238724.

It is a super-2 number, since 2×42783246² = 3660812276593032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42783246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42783241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33630 + ... + 34878.

It is an arithmetic number, because the mean of its divisors is an integer number (2120625).

Almost surely, 2^42783246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42783246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50895000).

42783246 is an abundant number, since it is smaller than the sum of its proper divisors (59006754).

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

42783246 is a wasteful number, since it uses less digits than its factorization.

42783246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1438 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 42783246 is about 6540.8903063727. The cubic root of 42783246 is about 349.7501509383.

The spelling of 42783246 in words is "forty-two million, seven hundred eighty-three thousand, two hundred forty-six".