3780028267 has 4 divisors (see below), whose sum is σ = 3781610280. Its totient is φ = 3778446256.

The previous prime is 3780028249. The next prime is 3780028277. The reversal of 3780028267 is 7628200873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3780028267 - 2⁷ = 3780028139 is a prime.

It is a super-2 number, since 2×3780028267² = 28577227398638046578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3780028277) 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, 787417 + ... + 792202.

It is an arithmetic number, because the mean of its divisors is an integer number (945402570).

Almost surely, 2^3780028267 is an apocalyptic number.

3780028267 is a deficient number, since it is larger than the sum of its proper divisors (1582013).

3780028267 is a wasteful number, since it uses less digits than its factorization.

3780028267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582012.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 3780028267 is about 61481.9344767225. The cubic root of 3780028267 is about 1557.7521135147.

The spelling of 3780028267 in words is "three billion, seven hundred eighty million, twenty-eight thousand, two hundred sixty-seven".