42306406 has 8 divisors (see below), whose sum is σ = 63630864. Its totient is φ = 21096120.

The previous prime is 42306401. The next prime is 42306449. The reversal of 42306406 is 60460324.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42306401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27610 + ... + 29101.

It is an arithmetic number, because the mean of its divisors is an integer number (7953858).

Almost surely, 2^42306406 is an apocalyptic number.

42306406 is a deficient number, since it is larger than the sum of its proper divisors (21324458).

42306406 is a wasteful number, since it uses less digits than its factorization.

42306406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57086.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 42306406 is about 6504.3374758695. The cubic root of 42306406 is about 348.4459151419.

The spelling of 42306406 in words is "forty-two million, three hundred six thousand, four hundred six".