42340344 has 32 divisors (see below), whose sum is σ = 107589840. Its totient is φ = 13881600.

The previous prime is 42340339. The next prime is 42340351. The reversal of 42340344 is 44304324.

It is a happy number.

42340344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 12997 + ... + 15924.

Almost surely, 2^42340344 is an apocalyptic number.

It is an amenable number.

42340344 is an abundant number, since it is smaller than the sum of its proper divisors (65249496).

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

42340344 is a wasteful number, since it uses less digits than its factorization.

42340344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28991 (or 28987 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 42340344 is about 6506.9458273448. The cubic root of 42340344 is about 348.5390641301.

Adding to 42340344 its reverse (44304324), we get a palindrome (86644668).

The spelling of 42340344 in words is "forty-two million, three hundred forty thousand, three hundred forty-four".