38626481 has 4 divisors (see below), whose sum is σ = 39259764. Its totient is φ = 37993200.

The previous prime is 38626459. The next prime is 38626493. The reversal of 38626481 is 18462683.

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: 18462683 = 4091 ⋅4513.

It can be written as a sum of positive squares in 2 ways, for example, as 1221025 + 37405456 = 1105^2 + 6116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38626481 is a prime.

It is a super-2 number, since 2×38626481² = 2984010068886722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38626421) 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, 316550 + ... + 316671.

It is an arithmetic number, because the mean of its divisors is an integer number (9814941).

Almost surely, 2^38626481 is an apocalyptic number.

It is an amenable number.

38626481 is a deficient number, since it is larger than the sum of its proper divisors (633283).

38626481 is an equidigital number, since it uses as much as digits as its factorization.

38626481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633282.

The product of its digits is 55296, while the sum is 38.

The square root of 38626481 is about 6215.0205952997. The cubic root of 38626481 is about 338.0350354075.

The spelling of 38626481 in words is "thirty-eight million, six hundred twenty-six thousand, four hundred eighty-one".