38751481 has 8 divisors (see below), whose sum is σ = 40674240. Its totient is φ = 36848592.

The previous prime is 38751467. The next prime is 38751491. The reversal of 38751481 is 18415783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38751481 - 2¹⁷ = 38620409 is a prime.

It is a super-2 number, since 2×38751481² = 3003354559386722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38751481.

It is not an unprimeable number, because it can be changed into a prime (38751451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891 + ... + 8848.

It is an arithmetic number, because the mean of its divisors is an integer number (5084280).

Almost surely, 2^38751481 is an apocalyptic number.

It is an amenable number.

38751481 is a deficient number, since it is larger than the sum of its proper divisors (1922759).

38751481 is a wasteful number, since it uses less digits than its factorization.

38751481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9935.

The product of its digits is 26880, while the sum is 37.

The square root of 38751481 is about 6225.0687546404. The cubic root of 38751481 is about 338.3992836296.

It can be divided in two parts, 3875 and 1481, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 38751481 in words is "thirty-eight million, seven hundred fifty-one thousand, four hundred eighty-one".