34149640 has 32 divisors (see below), whose sum is σ = 87814080. Its totient is φ = 11708352.

The previous prime is 34149637. The next prime is 34149667. The reversal of 34149640 is 4694143.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60702 + ... + 61261.

It is an arithmetic number, because the mean of its divisors is an integer number (2744190).

Almost surely, 2^34149640 is an apocalyptic number.

It is an amenable number.

34149640 is an abundant number, since it is smaller than the sum of its proper divisors (53664440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34149640 is a wasteful number, since it uses less digits than its factorization.

34149640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121981 (or 121977 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 34149640 is about 5843.7693315188. The cubic root of 34149640 is about 324.4357546862.

The spelling of 34149640 in words is "thirty-four million, one hundred forty-nine thousand, six hundred forty".