40034138 has 8 divisors (see below), whose sum is σ = 60081588. Its totient is φ = 20006944.

The previous prime is 40034129. The next prime is 40034179. The reversal of 40034138 is 83143004.

It can be written as a sum of positive squares in 2 ways, for example, as 36204289 + 3829849 = 6017^2 + 1957^2 .

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

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, 1670 + ... + 9102.

Almost surely, 2^40034138 is an apocalyptic number.

40034138 is a deficient number, since it is larger than the sum of its proper divisors (20047450).

40034138 is a wasteful number, since it uses less digits than its factorization.

40034138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40034138 is about 6327.2535906189. The cubic root of 40034138 is about 342.0924536020.

The spelling of 40034138 in words is "forty million, thirty-four thousand, one hundred thirty-eight".