38013705 has 28 divisors (see below), whose sum is σ = 68399940. Its totient is φ = 20272032.

The previous prime is 38013697. The next prime is 38013721. The reversal of 38013705 is 50731083.

It can be written as a sum of positive squares in 2 ways, for example, as 28869129 + 9144576 = 5373^2 + 3024^2 .

It is not a de Polignac number, because 38013705 - 2³ = 38013697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1570 + ... + 8859.

It is an arithmetic number, because the mean of its divisors is an integer number (2442855).

Almost surely, 2^38013705 is an apocalyptic number.

It is an amenable number.

38013705 is a deficient number, since it is larger than the sum of its proper divisors (30386235).

38013705 is an equidigital number, since it uses as much as digits as its factorization.

38013705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452 (or 10437 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 38013705 is about 6165.5255250465. The cubic root of 38013705 is about 336.2379532543.

Adding to 38013705 its reverse (50731083), we get a palindrome (88744788).

The spelling of 38013705 in words is "thirty-eight million, thirteen thousand, seven hundred five".