38403011 has 4 divisors (see below), whose sum is σ = 38436552. Its totient is φ = 38369472.

The previous prime is 38403007. The next prime is 38403023. The reversal of 38403011 is 11030483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11030483 = 263 ⋅41941.

It is a cyclic number.

It is not a de Polignac number, because 38403011 - 2² = 38403007 is a prime.

It is a super-2 number, since 2×38403011² = 2949582507732242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38402011) 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, 14990 + ... + 17363.

It is an arithmetic number, because the mean of its divisors is an integer number (9609138).

Almost surely, 2^38403011 is an apocalyptic number.

38403011 is a deficient number, since it is larger than the sum of its proper divisors (33541).

38403011 is a wasteful number, since it uses less digits than its factorization.

38403011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33540.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 38403011 is about 6197.0162981874. The cubic root of 38403011 is about 337.3818838616.

Adding to 38403011 its reverse (11030483), we get a palindrome (49433494).

The spelling of 38403011 in words is "thirty-eight million, four hundred three thousand, eleven".