42623430 has 32 divisors (see below), whose sum is σ = 103742208. Its totient is φ = 11205600.

The previous prime is 42623411. The next prime is 42623431. The reversal of 42623430 is 3432624.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42623430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42623431) 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 15 ways as a sum of consecutive naturals, for example, 7876 + ... + 12135.

It is an arithmetic number, because the mean of its divisors is an integer number (3241944).

Almost surely, 2^42623430 is an apocalyptic number.

42623430 is an abundant number, since it is smaller than the sum of its proper divisors (61118778).

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

42623430 is a wasteful number, since it uses less digits than its factorization.

42623430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20092.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 42623430 is about 6528.6621906789. The cubic root of 42623430 is about 349.3141125415.

The spelling of 42623430 in words is "forty-two million, six hundred twenty-three thousand, four hundred thirty".