3748640 has 48 divisors (see below), whose sum is σ = 10124352. Its totient is φ = 1284864.

The previous prime is 3748607. The next prime is 3748651. The reversal of 3748640 is 468473.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 3748597 and 3748606.

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, 554 + ... + 2793.

It is an arithmetic number, because the mean of its divisors is an integer number (210924).

Almost surely, 2^3748640 is an apocalyptic number.

It is an amenable number.

3748640 is an abundant number, since it is smaller than the sum of its proper divisors (6375712).

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

3748640 is a wasteful number, since it uses less digits than its factorization.

3748640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369 (or 3361 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3748640 is about 1936.1404907702. The cubic root of 3748640 is about 155.3428415325.

The spelling of 3748640 in words is "three million, seven hundred forty-eight thousand, six hundred forty".