38407481 has 16 divisors (see below), whose sum is σ = 45527040. Its totient is φ = 31706640.

The previous prime is 38407477. The next prime is 38407483. The reversal of 38407481 is 18470483.

It is a happy number.

It is not a de Polignac number, because 38407481 - 2² = 38407477 is a prime.

It is a super-2 number, since 2×38407481² = 2950269193530722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38407483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82010 + ... + 82476.

It is an arithmetic number, because the mean of its divisors is an integer number (2845440).

Almost surely, 2^38407481 is an apocalyptic number.

38407481 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

38407481 is a deficient number, since it is larger than the sum of its proper divisors (7119559).

38407481 is a wasteful number, since it uses less digits than its factorization.

38407481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 38407481 is about 6197.3769451277. The cubic root of 38407481 is about 337.3949734473.

The spelling of 38407481 in words is "thirty-eight million, four hundred seven thousand, four hundred eighty-one".