39906734 has 16 divisors (see below), whose sum is σ = 70619136. Its totient is φ = 16551000.

The previous prime is 39906677. The next prime is 39906743. The reversal of 39906734 is 43760993.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39906691 and 39906700.

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, 45542 + ... + 46409.

It is an arithmetic number, because the mean of its divisors is an integer number (4413696).

Almost surely, 2^39906734 is an apocalyptic number.

39906734 is a deficient number, since it is larger than the sum of its proper divisors (30712402).

39906734 is a wasteful number, since it uses less digits than its factorization.

39906734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91991.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 39906734 is about 6317.1776926093. The cubic root of 39906734 is about 341.7291781187.

The spelling of 39906734 in words is "thirty-nine million, nine hundred six thousand, seven hundred thirty-four".