3748638 has 16 divisors (see below), whose sum is σ = 7568640. Its totient is φ = 1237656.

The previous prime is 3748607. The next prime is 3748651. The reversal of 3748638 is 8368473.

It is a junction number, because it is equal to n+sod(n) for n = 3748596 and 3748605.

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, 2278 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (473040).

Almost surely, 2^3748638 is an apocalyptic number.

3748638 is an abundant number, since it is smaller than the sum of its proper divisors (3820002).

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

3748638 is a wasteful number, since it uses less digits than its factorization.

3748638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5951.

The product of its digits is 96768, while the sum is 39.

The square root of 3748638 is about 1936.1399742787. The cubic root of 3748638 is about 155.3428139060.

The spelling of 3748638 in words is "three million, seven hundred forty-eight thousand, six hundred thirty-eight".