4049136 has 160 divisors (see below), whose sum is σ = 14443520. Its totient is φ = 1057536.

The previous prime is 4049131. The next prime is 4049153. The reversal of 4049136 is 6319404.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4049131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39261 + ... + 39363.

It is an arithmetic number, because the mean of its divisors is an integer number (90272).

Almost surely, 2^4049136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4049136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7221760).

4049136 is an abundant number, since it is smaller than the sum of its proper divisors (10394384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4049136 is a wasteful number, since it uses less digits than its factorization.

4049136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4049136 is about 2012.2465057741. The cubic root of 4049136 is about 159.3874495465.

The spelling of 4049136 in words is "four million, forty-nine thousand, one hundred thirty-six".