3747520 has 84 divisors (see below), whose sum is σ = 10424160. Its totient is φ = 1279488.

The previous prime is 3747479. The next prime is 3747521. The reversal of 3747520 is 257473.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3747521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15561 + ... + 15799.

Almost surely, 2^3747520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3747520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5212080).

3747520 is an abundant number, since it is smaller than the sum of its proper divisors (6676640).

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

3747520 is a wasteful number, since it uses less digits than its factorization.

3747520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 3747520 is about 1935.8512339537. The cubic root of 3747520 is about 155.3273691378.

The spelling of 3747520 in words is "three million, seven hundred forty-seven thousand, five hundred twenty".