42155328 has 112 divisors (see below), whose sum is σ = 118140480. Its totient is φ = 13246464.

The previous prime is 42155317. The next prime is 42155329. The reversal of 42155328 is 82355124.

It is a junction number, because it is equal to n+sod(n) for n = 42155295 and 42155304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42155329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373000 + ... + 373112.

Almost surely, 2^42155328 is an apocalyptic number.

42155328 is a gapful number since it is divisible by the number (48) 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 42155328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59070240).

42155328 is an abundant number, since it is smaller than the sum of its proper divisors (75985152).

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

42155328 is a wasteful number, since it uses less digits than its factorization.

42155328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 214 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 42155328 is about 6492.7134543271. The cubic root of 42155328 is about 348.0306486417.

The spelling of 42155328 in words is "forty-two million, one hundred fifty-five thousand, three hundred twenty-eight".