42838650 has 72 divisors (see below), whose sum is σ = 120126240. Its totient is φ = 10924320.

The previous prime is 42838643. The next prime is 42838669. The reversal of 42838650 is 5683824.

42838650 = T₆₁ + T₆₂ + ... + T₆₃₅.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8281 + ... + 12419.

It is an arithmetic number, because the mean of its divisors is an integer number (1668420).

Almost surely, 2^42838650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42838650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60063120).

42838650 is an abundant number, since it is smaller than the sum of its proper divisors (77287590).

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

42838650 is a wasteful number, since it uses less digits than its factorization.

42838650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180 (or 4172 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 42838650 is about 6545.1241393880. The cubic root of 42838650 is about 349.9010604694.

The spelling of 42838650 in words is "forty-two million, eight hundred thirty-eight thousand, six hundred fifty".