42113430 has 24 divisors (see below), whose sum is σ = 109495152. Its totient is φ = 11230224.

The previous prime is 42113417. The next prime is 42113431. The reversal of 42113430 is 3431124.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42113431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233874 + ... + 234053.

It is an arithmetic number, because the mean of its divisors is an integer number (4562298).

Almost surely, 2^42113430 is an apocalyptic number.

42113430 is an abundant number, since it is smaller than the sum of its proper divisors (67381722).

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

42113430 is a wasteful number, since it uses less digits than its factorization.

42113430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467940 (or 467937 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42113430 is about 6489.4861121664. The cubic root of 42113430 is about 347.9153083640.

Adding to 42113430 its reverse (3431124), we get a palindrome (45544554).

The spelling of 42113430 in words is "forty-two million, one hundred thirteen thousand, four hundred thirty".