3842731505 has 4 divisors (see below), whose sum is σ = 4611277812. Its totient is φ = 3074185200.

The previous prime is 3842731499. The next prime is 3842731531. The reversal of 3842731505 is 5051372483.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2190146401 + 1652585104 = 46799^2 + 40652^2 .

It is not a de Polignac number, because 3842731505 - 2⁴ = 3842731489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384273146 + ... + 384273155.

It is an arithmetic number, because the mean of its divisors is an integer number (1152819453).

Almost surely, 2^3842731505 is an apocalyptic number.

It is an amenable number.

3842731505 is a deficient number, since it is larger than the sum of its proper divisors (768546307).

3842731505 is an equidigital number, since it uses as much as digits as its factorization.

3842731505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768546306.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 3842731505 is about 61989.7693575319. The cubic root of 3842731505 is about 1566.3182698706.

The spelling of 3842731505 in words is "three billion, eight hundred forty-two million, seven hundred thirty-one thousand, five hundred five".