42972930 has 320 divisors, whose sum is σ = 158070528. Its totient is φ = 8087040.

The previous prime is 42972911. The next prime is 42972959. The reversal of 42972930 is 3927924.

42972930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 810784 + ... + 810836.

Almost surely, 2^42972930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42972930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79035264).

42972930 is an abundant number, since it is smaller than the sum of its proper divisors (115097598).

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

42972930 is a wasteful number, since it uses less digits than its factorization.

42972930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 42972930 is about 6555.3741311995. The cubic root of 42972930 is about 350.2662735631.

It can be divided in two parts, 4297 and 2930, that added together give a palindrome (7227).

The spelling of 42972930 in words is "forty-two million, nine hundred seventy-two thousand, nine hundred thirty".