3765428 has 12 divisors (see below), whose sum is σ = 6603492. Its totient is φ = 1878720.

The previous prime is 3765427. The next prime is 3765431. The reversal of 3765428 is 8245673.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1036324 + 2729104 = 1018^2 + 1652^2 .

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2426 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (550291).

Almost surely, 2^3765428 is an apocalyptic number.

It is an amenable number.

3765428 is a deficient number, since it is larger than the sum of its proper divisors (2838064).

3765428 is a wasteful number, since it uses less digits than its factorization.

3765428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 2000 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 3765428 is about 1940.4710768264. The cubic root of 3765428 is about 155.5743932591.

The spelling of 3765428 in words is "three million, seven hundred sixty-five thousand, four hundred twenty-eight".