4639040 has 112 divisors (see below), whose sum is σ = 13411200. Its totient is φ = 1492992.

The previous prime is 4639003. The next prime is 4639049. The reversal of 4639040 is 409364.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639049) 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, 42506 + ... + 42614.

Almost surely, 2^4639040 is an apocalyptic number.

4639040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4639040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6705600).

4639040 is an abundant number, since it is smaller than the sum of its proper divisors (8772160).

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

4639040 is a wasteful number, since it uses less digits than its factorization.

4639040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 4639040 is about 2153.8430769209. The cubic root of 4639040 is about 166.7795146858.

The spelling of 4639040 in words is "four million, six hundred thirty-nine thousand, forty".