42030100 has 72 divisors (see below), whose sum is σ = 105479360. Its totient is φ = 14238720.

The previous prime is 42030097. The next prime is 42030119. The reversal of 42030100 is 103024.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67591 + ... + 68209.

Almost surely, 2^42030100 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 42030100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52739680).

42030100 is an abundant number, since it is smaller than the sum of its proper divisors (63449260).

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

42030100 is a wasteful number, since it uses less digits than its factorization.

42030100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 42030100 is about 6483.0625479013. The cubic root of 42030100 is about 347.6856830739.

Adding to 42030100 its reverse (103024), we get a palindrome (42133124).

The spelling of 42030100 in words is "forty-two million, thirty thousand, one hundred".