3780042993 has 6 divisors (see below), whose sum is σ = 5460062114. Its totient is φ = 2520028656.

The previous prime is 3780042983. The next prime is 3780042997. The reversal of 3780042993 is 3992400873.

It is a happy number.

3780042993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3758670864 + 21372129 = 61308^2 + 4623^2 .

It is not a de Polignac number, because 3780042993 - 2¹⁶ = 3779977457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3780042997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210002380 + ... + 210002397.

Almost surely, 2^3780042993 is an apocalyptic number.

It is an amenable number.

3780042993 is a deficient number, since it is larger than the sum of its proper divisors (1680019121).

3780042993 is a wasteful number, since it uses less digits than its factorization.

3780042993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420004783 (or 420004780 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3780042993 is about 61482.0542353620. The cubic root of 3780042993 is about 1557.7541363768.

The spelling of 3780042993 in words is "three billion, seven hundred eighty million, forty-two thousand, nine hundred ninety-three".