3764640 has 192 divisors, whose sum is σ = 13934592. Its totient is φ = 844800.

The previous prime is 3764597. The next prime is 3764647. The reversal of 3764640 is 464673.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3764598 and 3764607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3764647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121425 + ... + 121455.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

Almost surely, 2^3764640 is an apocalyptic number.

3764640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3764640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6967296).

3764640 is an abundant number, since it is smaller than the sum of its proper divisors (10169952).

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

3764640 is a wasteful number, since it uses less digits than its factorization.

3764640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 3764640 is about 1940.2680227226. The cubic root of 3764640 is about 155.5635400286.

The spelling of 3764640 in words is "three million, seven hundred sixty-four thousand, six hundred forty".