3649597149 has 16 divisors (see below), whose sum is σ = 5327276544. Its totient is φ = 2204055600.

The previous prime is 3649597139. The next prime is 3649597153. The reversal of 3649597149 is 9417959463.

It is not a de Polignac number, because 3649597149 - 2⁵ = 3649597117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649597139) 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, 186057 + ... + 204734.

It is an arithmetic number, because the mean of its divisors is an integer number (332954784).

Almost surely, 2^3649597149 is an apocalyptic number.

It is an amenable number.

3649597149 is a deficient number, since it is larger than the sum of its proper divisors (1677679395).

3649597149 is a wasteful number, since it uses less digits than its factorization.

3649597149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391088.

The product of its digits is 7348320, while the sum is 57.

The square root of 3649597149 is about 60411.8957573755. The cubic root of 3649597149 is about 1539.6250772520.

The spelling of 3649597149 in words is "three billion, six hundred forty-nine million, five hundred ninety-seven thousand, one hundred forty-nine".