42546630 has 64 divisors (see below), whose sum is σ = 118153728. Its totient is φ = 9603840.

The previous prime is 42546629. The next prime is 42546641. The reversal of 42546630 is 3664524.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16210 + ... + 18650.

It is an arithmetic number, because the mean of its divisors is an integer number (1846152).

Almost surely, 2^42546630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42546630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59076864).

42546630 is an abundant number, since it is smaller than the sum of its proper divisors (75607098).

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

42546630 is a wasteful number, since it uses less digits than its factorization.

42546630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 42546630 is about 6522.7777825095. Note that the first 4 decimals coincide. The cubic root of 42546630 is about 349.1041853354.

The spelling of 42546630 in words is "forty-two million, five hundred forty-six thousand, six hundred thirty".