42030660 has 192 divisors, whose sum is σ = 148377600. Its totient is φ = 8667648.

The previous prime is 42030649. The next prime is 42030661. The reversal of 42030660 is 6603024.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (42030661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 183426 + ... + 183654.

It is an arithmetic number, because the mean of its divisors is an integer number (772800).

Almost surely, 2^42030660 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 42030660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74188800).

42030660 is an abundant number, since it is smaller than the sum of its proper divisors (106346940).

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

42030660 is a wasteful number, since it uses less digits than its factorization.

42030660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 42030660 is about 6483.1057372219. The cubic root of 42030660 is about 347.6872272301.

Adding to 42030660 its reverse (6603024), we get a palindrome (48633684).

The spelling of 42030660 in words is "forty-two million, thirty thousand, six hundred sixty".