42146500 has 96 divisors (see below), whose sum is σ = 102735360. Its totient is φ = 14976000.

The previous prime is 42146497. The next prime is 42146509. The reversal of 42146500 is 564124.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (42146509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434452 + ... + 434548.

It is an arithmetic number, because the mean of its divisors is an integer number (1070160).

Almost surely, 2^42146500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42146500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51367680).

42146500 is an abundant number, since it is smaller than the sum of its proper divisors (60588860).

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

42146500 is a wasteful number, since it uses less digits than its factorization.

42146500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 42146500 is about 6492.0335797037. The cubic root of 42146500 is about 348.0063525506.

The spelling of 42146500 in words is "forty-two million, one hundred forty-six thousand, five hundred".