3040638 has 8 divisors (see below), whose sum is σ = 6081288. Its totient is φ = 1013544.

The previous prime is 3040633. The next prime is 3040649. The reversal of 3040638 is 8360403.

It is a sphenic number, since it is the product of 3 distinct primes.

3040638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3040633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253381 + ... + 253392.

It is an arithmetic number, because the mean of its divisors is an integer number (760161).

Almost surely, 2^3040638 is an apocalyptic number.

3040638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3040638 is a wasteful number, since it uses less digits than its factorization.

3040638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506778.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3040638 is about 1743.7425268657. The cubic root of 3040638 is about 144.8732622254.

The spelling of 3040638 in words is "three million, forty thousand, six hundred thirty-eight".