4949638 has 16 divisors (see below), whose sum is σ = 7685424. Its totient is φ = 2388960.

The previous prime is 4949627. The next prime is 4949641. The reversal of 4949638 is 8369494.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4949594 and 4949603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15456 + ... + 15772.

It is an arithmetic number, because the mean of its divisors is an integer number (480339).

Almost surely, 2^4949638 is an apocalyptic number.

4949638 is a deficient number, since it is larger than the sum of its proper divisors (2735786).

4949638 is a wasteful number, since it uses less digits than its factorization.

4949638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its digits is 186624, while the sum is 43.

The square root of 4949638 is about 2224.7781911912. The cubic root of 4949638 is about 170.4215374997.

The spelling of 4949638 in words is "four million, nine hundred forty-nine thousand, six hundred thirty-eight".