1024638 has 8 divisors (see below), whose sum is σ = 2049288. Its totient is φ = 341544.

The previous prime is 1024633. The next prime is 1024663. The reversal of 1024638 is 8364201.

It is a happy number.

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

1024638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85381 + ... + 85392.

It is an arithmetic number, because the mean of its divisors is an integer number (256161).

2^1024638 is an apocalyptic number.

1024638 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.

1024638 is a wasteful number, since it uses less digits than its factorization.

1024638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170778.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1024638 is about 1012.2440417212. The cubic root of 1024638 is about 100.8146127089.

Adding to 1024638 its reverse (8364201), we get a palindrome (9388839).

The spelling of 1024638 in words is "one million, twenty-four thousand, six hundred thirty-eight".