42655650 has 48 divisors (see below), whose sum is σ = 106392000. Its totient is φ = 11309760.

The previous prime is 42655637. The next prime is 42655673. The reversal of 42655650 is 5655624.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29136 + ... + 30564.

It is an arithmetic number, because the mean of its divisors is an integer number (2216500).

Almost surely, 2^42655650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42655650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53196000).

42655650 is an abundant number, since it is smaller than the sum of its proper divisors (63736350).

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

42655650 is a wasteful number, since it uses less digits than its factorization.

42655650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 42655650 is about 6531.1293051049. The cubic root of 42655650 is about 349.4021084782.

The spelling of 42655650 in words is "forty-two million, six hundred fifty-five thousand, six hundred fifty".