3765420 has 96 divisors (see below), whose sum is σ = 12364800. Its totient is φ = 948672.

The previous prime is 3765409. The next prime is 3765427. The reversal of 3765420 is 245673.

It is a happy number.

3765420 is a `hidden beast` number, since 3 + 7 + 654 + 2 + 0 = 666.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3765427) 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, 10077 + ... + 10443.

It is an arithmetic number, because the mean of its divisors is an integer number (128800).

Almost surely, 2^3765420 is an apocalyptic number.

3765420 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 3765420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6182400).

3765420 is an abundant number, since it is smaller than the sum of its proper divisors (8599380).

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

3765420 is a wasteful number, since it uses less digits than its factorization.

3765420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 3765420 is about 1940.4690154702. The cubic root of 3765420 is about 155.5742830816.

The spelling of 3765420 in words is "three million, seven hundred sixty-five thousand, four hundred twenty".