3840172090 has 8 divisors (see below), whose sum is σ = 6912309780. Its totient is φ = 1536068832.

The previous prime is 3840172073. The next prime is 3840172093. The reversal of 3840172090 is 902710483.

It can be written as a sum of positive squares in 2 ways, for example, as 3840156961 + 15129 = 61969^2 + 123^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3840172093) 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, 192008595 + ... + 192008614.

Almost surely, 2^3840172090 is an apocalyptic number.

3840172090 is a deficient number, since it is larger than the sum of its proper divisors (3072137690).

3840172090 is a wasteful number, since it uses less digits than its factorization.

3840172090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384017216.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 3840172090 is about 61969.1220689788. The cubic root of 3840172090 is about 1565.9704488116.

The spelling of 3840172090 in words is "three billion, eight hundred forty million, one hundred seventy-two thousand, ninety".