42155652 has 96 divisors (see below), whose sum is σ = 125604864. Its totient is φ = 10684800.

The previous prime is 42155621. The next prime is 42155653. The reversal of 42155652 is 25655124.

It is not an unprimeable number, because it can be changed into a prime (42155653) 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 31 ways as a sum of consecutive naturals, for example, 39202 + ... + 40262.

It is an arithmetic number, because the mean of its divisors is an integer number (1308384).

Almost surely, 2^42155652 is an apocalyptic number.

42155652 is a gapful number since it is divisible by the number (42) 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 42155652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62802432).

42155652 is an abundant number, since it is smaller than the sum of its proper divisors (83449212).

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

42155652 is a wasteful number, since it uses less digits than its factorization.

42155652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1127 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 42155652 is about 6492.7384053264. The cubic root of 42155652 is about 348.0315402778.

The spelling of 42155652 in words is "forty-two million, one hundred fifty-five thousand, six hundred fifty-two".