3500381009 has 4 divisors (see below), whose sum is σ = 3502039716. Its totient is φ = 3498722304.

The previous prime is 3500380973. The next prime is 3500381023. The reversal of 3500381009 is 9001830053.

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 389865025 + 3110515984 = 19745^2 + 55772^2 .

It is not a de Polignac number, because 3500381009 - 2¹⁶ = 3500315473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3500381069) 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, 826184 + ... + 830409.

It is an arithmetic number, because the mean of its divisors is an integer number (875509929).

Almost surely, 2^3500381009 is an apocalyptic number.

It is an amenable number.

3500381009 is a deficient number, since it is larger than the sum of its proper divisors (1658707).

3500381009 is a wasteful number, since it uses less digits than its factorization.

3500381009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658706.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 3500381009 is about 59164.0178571402. The cubic root of 3500381009 is about 1518.3495776401.

The spelling of 3500381009 in words is "three billion, five hundred million, three hundred eighty-one thousand, nine".