34139649 has 16 divisors (see below), whose sum is σ = 47697920. Its totient is φ = 21692880.

The previous prime is 34139629. The next prime is 34139657. The reversal of 34139649 is 94693143.

It is not a de Polignac number, because 34139649 - 2¹³ = 34131457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34139629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3492 + ... + 8970.

It is an arithmetic number, because the mean of its divisors is an integer number (2981120).

Almost surely, 2^34139649 is an apocalyptic number.

It is an amenable number.

34139649 is a deficient number, since it is larger than the sum of its proper divisors (13558271).

34139649 is a wasteful number, since it uses less digits than its factorization.

34139649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580.

The product of its digits is 69984, while the sum is 39.

The square root of 34139649 is about 5842.9144268935. The cubic root of 34139649 is about 324.4041120511.

The spelling of 34139649 in words is "thirty-four million, one hundred thirty-nine thousand, six hundred forty-nine".