38681534 has 16 divisors (see below), whose sum is σ = 60231600. Its totient is φ = 18609024.

The previous prime is 38681527. The next prime is 38681537. The reversal of 38681534 is 43518683.

It is a super-2 number, since 2×38681534² = 2992522145186312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38681537) 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, 18557 + ... + 20535.

It is an arithmetic number, because the mean of its divisors is an integer number (3764475).

Almost surely, 2^38681534 is an apocalyptic number.

38681534 is a deficient number, since it is larger than the sum of its proper divisors (21550066).

38681534 is a wasteful number, since it uses less digits than its factorization.

38681534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347.

The product of its digits is 69120, while the sum is 38.

The square root of 38681534 is about 6219.4480462498. The cubic root of 38681534 is about 338.1955557552.

The spelling of 38681534 in words is "thirty-eight million, six hundred eighty-one thousand, five hundred thirty-four".