42381746 has 32 divisors (see below), whose sum is σ = 72078336. Its totient is φ = 18522000.

The previous prime is 42381727. The next prime is 42381749. The reversal of 42381746 is 64718324.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42381749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66851 + ... + 67481.

It is an arithmetic number, because the mean of its divisors is an integer number (2252448).

Almost surely, 2^42381746 is an apocalyptic number.

42381746 is a deficient number, since it is larger than the sum of its proper divisors (29696590).

42381746 is a wasteful number, since it uses less digits than its factorization.

42381746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758.

The product of its digits is 32256, while the sum is 35.

The square root of 42381746 is about 6510.1264196634. The cubic root of 42381746 is about 348.6526320424.

The spelling of 42381746 in words is "forty-two million, three hundred eighty-one thousand, seven hundred forty-six".