938402011 has 4 divisors (see below), whose sum is σ = 938918592. Its totient is φ = 937885432.

The previous prime is 938401999. The next prime is 938402051. The reversal of 938402011 is 110204839.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 938402011 - 2¹⁹ = 937877723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938402051) 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, 255556 + ... + 259201.

It is an arithmetic number, because the mean of its divisors is an integer number (234729648).

Almost surely, 2^938402011 is an apocalyptic number.

938402011 is a deficient number, since it is larger than the sum of its proper divisors (516581).

938402011 is a wasteful number, since it uses less digits than its factorization.

938402011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516580.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 938402011 is about 30633.3480213966. The cubic root of 938402011 is about 979.0306988926.

The spelling of 938402011 in words is "nine hundred thirty-eight million, four hundred two thousand, eleven".