42073405 has 8 divisors (see below), whose sum is σ = 55077984. Its totient is φ = 30598800.

The previous prime is 42073399. The next prime is 42073433. The reversal of 42073405 is 50437024.

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

It is not a de Polignac number, because 42073405 - 2¹¹ = 42071357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42073405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382431 + ... + 382540.

It is an arithmetic number, because the mean of its divisors is an integer number (6884748).

Almost surely, 2^42073405 is an apocalyptic number.

It is an amenable number.

42073405 is a deficient number, since it is larger than the sum of its proper divisors (13004579).

42073405 is a wasteful number, since it uses less digits than its factorization.

42073405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764987.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42073405 is about 6486.4015447704. The cubic root of 42073405 is about 347.8050527667.

The spelling of 42073405 in words is "forty-two million, seventy-three thousand, four hundred five".