42530796 has 144 divisors (see below), whose sum is σ = 136631040. Its totient is φ = 10834560.

The previous prime is 42530779. The next prime is 42530801. The reversal of 42530796 is 69703524.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42530796.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185610 + ... + 185838.

Almost surely, 2^42530796 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 42530796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68315520).

42530796 is an abundant number, since it is smaller than the sum of its proper divisors (94100244).

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

42530796 is a wasteful number, since it uses less digits than its factorization.

42530796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 42530796 is about 6521.5639228639. The cubic root of 42530796 is about 349.0608728448.

The spelling of 42530796 in words is "forty-two million, five hundred thirty thousand, seven hundred ninety-six".