38457013 has 6 divisors (see below), whose sum is σ = 44735766. Its totient is φ = 32963112.

The previous prime is 38457011. The next prime is 38457031. The reversal of 38457013 is 31075483.

It can be written as a sum of positive squares in only one way, i.e., 29354724 + 9102289 = 5418^2 + 3017^2 .

It is not a de Polignac number, because 38457013 - 2¹ = 38457011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38457011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 392370 + ... + 392467.

It is an arithmetic number, because the mean of its divisors is an integer number (7455961).

Almost surely, 2^38457013 is an apocalyptic number.

It is an amenable number.

38457013 is a deficient number, since it is larger than the sum of its proper divisors (6278753).

38457013 is an equidigital number, since it uses as much as digits as its factorization.

38457013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784851 (or 784844 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 38457013 is about 6201.3718643539. The cubic root of 38457013 is about 337.5399510091.

The spelling of 38457013 in words is "thirty-eight million, four hundred fifty-seven thousand, thirteen".