38028901 has 4 divisors (see below), whose sum is σ = 38377900. Its totient is φ = 37679904.

The previous prime is 38028883. The next prime is 38028911. The reversal of 38028901 is 10982083.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14516100 + 23512801 = 3810^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 38028901 - 2⁵ = 38028869 is a prime.

It is a super-2 number, since 2×38028901² = 2892394622535602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38028911) 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, 174336 + ... + 174553.

It is an arithmetic number, because the mean of its divisors is an integer number (9594475).

Almost surely, 2^38028901 is an apocalyptic number.

It is an amenable number.

38028901 is a deficient number, since it is larger than the sum of its proper divisors (348999).

38028901 is a wasteful number, since it uses less digits than its factorization.

38028901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348998.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 38028901 is about 6166.7577380663. The cubic root of 38028901 is about 336.2827510560.

The spelling of 38028901 in words is "thirty-eight million, twenty-eight thousand, nine hundred one".