38503011 has 16 divisors (see below), whose sum is σ = 55517184. Its totient is φ = 23643264.

The previous prime is 38503001. The next prime is 38503013. The reversal of 38503011 is 11030583.

It is a happy number.

It is not a de Polignac number, because 38503011 - 2⁵ = 38502979 is a prime.

It is a super-2 number, since 2×38503011² = 2964963712132242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38503013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5635 + ... + 10428.

It is an arithmetic number, because the mean of its divisors is an integer number (3469824).

Almost surely, 2^38503011 is an apocalyptic number.

38503011 is a deficient number, since it is larger than the sum of its proper divisors (17014173).

38503011 is a wasteful number, since it uses less digits than its factorization.

38503011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16130.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 38503011 is about 6205.0794515461. The cubic root of 38503011 is about 337.6744733008.

Adding to 38503011 its reverse (11030583), we get a palindrome (49533594).

The spelling of 38503011 in words is "thirty-eight million, five hundred three thousand, eleven".