3780309 has 8 divisors (see below), whose sum is σ = 5428192. Its totient is φ = 2326320.

The previous prime is 3780281. The next prime is 3780313. The reversal of 3780309 is 9030873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3780309 - 2⁷ = 3780181 is a prime.

It is a super-2 number, since 2×3780309² = 28581472270962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48427 + ... + 48504.

It is an arithmetic number, because the mean of its divisors is an integer number (678524).

Almost surely, 2^3780309 is an apocalyptic number.

3780309 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3780309 is a deficient number, since it is larger than the sum of its proper divisors (1647883).

3780309 is a wasteful number, since it uses less digits than its factorization.

3780309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96947.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 3780309 is about 1944.3016741236. The cubic root of 3780309 is about 155.7790675978.

Subtracting from 3780309 its product of nonzero digits (4536), we obtain a palindrome (3775773).

The spelling of 3780309 in words is "three million, seven hundred eighty thousand, three hundred nine".