34040638 has 4 divisors (see below), whose sum is σ = 51060960. Its totient is φ = 17020318.

The previous prime is 34040627. The next prime is 34040639. The reversal of 34040638 is 83604043.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34040639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8510158 + ... + 8510161.

It is an arithmetic number, because the mean of its divisors is an integer number (12765240).

Almost surely, 2^34040638 is an apocalyptic number.

34040638 is a deficient number, since it is larger than the sum of its proper divisors (17020322).

34040638 is a wasteful number, since it uses less digits than its factorization.

34040638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17020321.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 34040638 is about 5834.4355339656. The cubic root of 34040638 is about 324.0901986844.

The spelling of 34040638 in words is "thirty-four million, forty thousand, six hundred thirty-eight".