4649139 has 24 divisors (see below), whose sum is σ = 7398144. Its totient is φ = 2790000.

The previous prime is 4649137. The next prime is 4649147. The reversal of 4649139 is 9319464.

4649139 is a `hidden beast` number, since 4 + 649 + 1 + 3 + 9 = 666.

It is not a de Polignac number, because 4649139 - 2¹ = 4649137 is a prime.

It is a super-2 number, since 2×4649139² = 43228986882642, which contains 22 as substring.

4649139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4649137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14794 + ... + 15104.

It is an arithmetic number, because the mean of its divisors is an integer number (308256).

Almost surely, 2^4649139 is an apocalyptic number.

4649139 is a deficient number, since it is larger than the sum of its proper divisors (2749005).

4649139 is a wasteful number, since it uses less digits than its factorization.

4649139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 476 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 4649139 is about 2156.1862164479. The cubic root of 4649139 is about 166.9004510270.

The spelling of 4649139 in words is "four million, six hundred forty-nine thousand, one hundred thirty-nine".