38491444 has 12 divisors (see below), whose sum is σ = 67737600. Its totient is φ = 19137848.

The previous prime is 38491441. The next prime is 38491447. The reversal of 38491444 is 44419483.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38491441) and next prime (38491447).

It is a super-2 number, since 2×38491444² = 2963182522410272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38491441) 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, 26164 + ... + 27595.

It is an arithmetic number, because the mean of its divisors is an integer number (5644800).

Almost surely, 2^38491444 is an apocalyptic number.

It is an amenable number.

38491444 is a deficient number, since it is larger than the sum of its proper divisors (29246156).

38491444 is a wasteful number, since it uses less digits than its factorization.

38491444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53942 (or 53940 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 38491444 is about 6204.1473225577. The cubic root of 38491444 is about 337.6406554103.

The spelling of 38491444 in words is "thirty-eight million, four hundred ninety-one thousand, four hundred forty-four".