42093946 has 4 divisors (see below), whose sum is σ = 63140922. Its totient is φ = 21046972.

The previous prime is 42093943. The next prime is 42093967. The reversal of 42093946 is 64939024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31236921 + 10857025 = 5589^2 + 3295^2 .

It is not an unprimeable number, because it can be changed into a prime (42093943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10523485 + ... + 10523488.

Almost surely, 2^42093946 is an apocalyptic number.

42093946 is a deficient number, since it is larger than the sum of its proper divisors (21046976).

42093946 is a wasteful number, since it uses less digits than its factorization.

42093946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21046975.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 42093946 is about 6487.9847410425. The cubic root of 42093946 is about 347.8616451379.

The spelling of 42093946 in words is "forty-two million, ninety-three thousand, nine hundred forty-six".