38213705 has 16 divisors (see below), whose sum is σ = 48708864. Its totient is φ = 28680960.

The previous prime is 38213701. The next prime is 38213719. The reversal of 38213705 is 50731283.

It is not a de Polignac number, because 38213705 - 2² = 38213701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38213701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38870 + ... + 39840.

It is an arithmetic number, because the mean of its divisors is an integer number (3044304).

Almost surely, 2^38213705 is an apocalyptic number.

It is an amenable number.

38213705 is a deficient number, since it is larger than the sum of its proper divisors (10495159).

38213705 is a wasteful number, since it uses less digits than its factorization.

38213705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 38213705 is about 6181.7234651835. The cubic root of 38213705 is about 336.8266005897.

Adding to 38213705 its reverse (50731283), we get a palindrome (88944988).

The spelling of 38213705 in words is "thirty-eight million, two hundred thirteen thousand, seven hundred five".