3780540 has 48 divisors (see below), whose sum is σ = 11763360. Its totient is φ = 1008000.

The previous prime is 3780521. The next prime is 3780541. The reversal of 3780540 is 450873.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2961 + ... + 4040.

It is an arithmetic number, because the mean of its divisors is an integer number (245070).

Almost surely, 2^3780540 is an apocalyptic number.

3780540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3780540 is an abundant number, since it is smaller than the sum of its proper divisors (7982820).

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

3780540 is a wasteful number, since it uses less digits than its factorization.

3780540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7019 (or 7011 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3780540 is about 1944.3610775779. The cubic root of 3780540 is about 155.7822405510.

The spelling of 3780540 in words is "three million, seven hundred eighty thousand, five hundred forty".