42407734 has 8 divisors (see below), whose sum is σ = 66959640. Its totient is φ = 20087856.

The previous prime is 42407711. The next prime is 42407737. The reversal of 42407734 is 43770424.

42407734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 42407696 and 42407705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42407737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557959 + ... + 558034.

It is an arithmetic number, because the mean of its divisors is an integer number (8369955).

Almost surely, 2^42407734 is an apocalyptic number.

42407734 is a deficient number, since it is larger than the sum of its proper divisors (24551906).

42407734 is a wasteful number, since it uses less digits than its factorization.

42407734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116014.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 42407734 is about 6512.1220811652. The cubic root of 42407734 is about 348.7238807449.

The spelling of 42407734 in words is "forty-two million, four hundred seven thousand, seven hundred thirty-four".