49140009 has 12 divisors (see below), whose sum is σ = 71059456. Its totient is φ = 32723352.

The previous prime is 49139999. The next prime is 49140031. The reversal of 49140009 is 90004194.

It is not a de Polignac number, because 49140009 - 2⁵ = 49139977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49140079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7272 + ... + 12294.

Almost surely, 2^49140009 is an apocalyptic number.

It is an amenable number.

49140009 is a deficient number, since it is larger than the sum of its proper divisors (21919447).

49140009 is a wasteful number, since it uses less digits than its factorization.

49140009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116 (or 6113 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 49140009 is about 7009.9935092695. The cubic root of 49140009 is about 366.2787672854.

The spelling of 49140009 in words is "forty-nine million, one hundred forty thousand, nine".