42000738 has 16 divisors (see below), whose sum is σ = 90463296. Its totient is φ = 12923280.

The previous prime is 42000731. The next prime is 42000779. The reversal of 42000738 is 83700024.

42000738 is a modest number, since divided by 738 gives 420 as remainder.

It is not an unprimeable number, because it can be changed into a prime (42000731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269158 + ... + 269313.

It is an arithmetic number, because the mean of its divisors is an integer number (5653956).

Almost surely, 2^42000738 is an apocalyptic number.

42000738 is an abundant number, since it is smaller than the sum of its proper divisors (48462558).

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

42000738 is a wasteful number, since it uses less digits than its factorization.

42000738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538489.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 42000738 is about 6480.7976360939. The cubic root of 42000738 is about 347.6047004352.

The spelling of 42000738 in words is "forty-two million, seven hundred thirty-eight", and thus it is an aban number.