42345044 has 12 divisors (see below), whose sum is σ = 84690144. Its totient is φ = 18147864.

The previous prime is 42345031. The next prime is 42345049. The reversal of 42345044 is 44054324.

42345044 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42345049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756134 + ... + 756189.

It is an arithmetic number, because the mean of its divisors is an integer number (7057512).

Almost surely, 2^42345044 is an apocalyptic number.

It is an amenable number.

42345044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42345044 is a wasteful number, since it uses less digits than its factorization.

42345044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512334 (or 1512332 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 42345044 is about 6507.3069698609. The cubic root of 42345044 is about 348.5519602070.

Adding to 42345044 its reverse (44054324), we get a palindrome (86399368).

The spelling of 42345044 in words is "forty-two million, three hundred forty-five thousand, forty-four".