38491744 has 12 divisors (see below), whose sum is σ = 75780684. Its totient is φ = 19245856.

The previous prime is 38491721. The next prime is 38491753. The reversal of 38491744 is 44719483.

It is a super-2 number, since 2×38491744² = 2963228712323072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38491697 and 38491706.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 601402 + ... + 601465.

It is an arithmetic number, because the mean of its divisors is an integer number (6315057).

Almost surely, 2^38491744 is an apocalyptic number.

It is an amenable number.

38491744 is a deficient number, since it is larger than the sum of its proper divisors (37288940).

38491744 is a wasteful number, since it uses less digits than its factorization.

38491744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202877 (or 1202869 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 38491744 is about 6204.1714998862. The cubic root of 38491744 is about 337.6415325916.

The spelling of 38491744 in words is "thirty-eight million, four hundred ninety-one thousand, seven hundred forty-four".