40005934 has 8 divisors (see below), whose sum is σ = 61944768. Its totient is φ = 19357680.

The previous prime is 40005923. The next prime is 40005941. The reversal of 40005934 is 43950004.

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 = 40005899 and 40005908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322567 + ... + 322690.

It is an arithmetic number, because the mean of its divisors is an integer number (7743096).

Almost surely, 2^40005934 is an apocalyptic number.

40005934 is a deficient number, since it is larger than the sum of its proper divisors (21938834).

40005934 is a wasteful number, since it uses less digits than its factorization.

40005934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645290.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40005934 is about 6325.0244268303. The cubic root of 40005934 is about 342.0121001612.

Adding to 40005934 its reverse (43950004), we get a palindrome (83955938).

The spelling of 40005934 in words is "forty million, five thousand, nine hundred thirty-four".