42073966 has 8 divisors (see below), whose sum is σ = 68848344. Its totient is φ = 19124520.

The previous prime is 42073931. The next prime is 42073979. The reversal of 42073966 is 66937024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42073966² = 3540437229938312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956205 + ... + 956248.

It is an arithmetic number, because the mean of its divisors is an integer number (8606043).

Almost surely, 2^42073966 is an apocalyptic number.

42073966 is a deficient number, since it is larger than the sum of its proper divisors (26774378).

42073966 is a wasteful number, since it uses less digits than its factorization.

42073966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912466.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 42073966 is about 6486.4447889426. Note that the first 3 decimals coincide. The cubic root of 42073966 is about 347.8065986187.

The spelling of 42073966 in words is "forty-two million, seventy-three thousand, nine hundred sixty-six".