42906693 has 16 divisors (see below), whose sum is σ = 60480000. Its totient is φ = 26982000.

The previous prime is 42906683. The next prime is 42906701. The reversal of 42906693 is 39660924.

It is a happy number.

It is not a de Polignac number, because 42906693 - 2²¹ = 40809541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42906683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12808 + ... + 15806.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 2^42906693 is an apocalyptic number.

It is an amenable number.

42906693 is a deficient number, since it is larger than the sum of its proper divisors (17573307).

42906693 is a wasteful number, since it uses less digits than its factorization.

42906693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 42906693 is about 6550.3200685157. The cubic root of 42906693 is about 350.0862182152.

The spelling of 42906693 in words is "forty-two million, nine hundred six thousand, six hundred ninety-three".