42943746 has 32 divisors (see below), whose sum is σ = 87635520. Its totient is φ = 14026496.

The previous prime is 42943741. The next prime is 42943753. The reversal of 42943746 is 64734924.

It is not an unprimeable number, because it can be changed into a prime (42943741) 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, 72865 + ... + 73451.

It is an arithmetic number, because the mean of its divisors is an integer number (2738610).

Almost surely, 2^42943746 is an apocalyptic number.

42943746 is an abundant number, since it is smaller than the sum of its proper divisors (44691774).

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

42943746 is a wasteful number, since it uses less digits than its factorization.

42943746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 145152, while the sum is 39.

The square root of 42943746 is about 6553.1477932365. The cubic root of 42943746 is about 350.1869640548.

The spelling of 42943746 in words is "forty-two million, nine hundred forty-three thousand, seven hundred forty-six".