3744640 has 32 divisors (see below), whose sum is σ = 8953560. Its totient is φ = 1497600.

The previous prime is 3744623. The next prime is 3744647. The reversal of 3744640 is 464473.

3744640 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 3744599 and 3744608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3744647) 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, 2286 + ... + 3565.

Almost surely, 2^3744640 is an apocalyptic number.

It is an amenable number.

3744640 is an abundant number, since it is smaller than the sum of its proper divisors (5208920).

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

3744640 is an equidigital number, since it uses as much as digits as its factorization.

3744640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5870 (or 5858 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 3744640 is about 1935.1072321709. The cubic root of 3744640 is about 155.2875688194.

The spelling of 3744640 in words is "three million, seven hundred forty-four thousand, six hundred forty".