38443444 has 72 divisors (see below), whose sum is σ = 78858360. Its totient is φ = 16353792.

The previous prime is 38443439. The next prime is 38443451. The reversal of 38443444 is 44434483.

It can be written as a sum of positive squares in 12 ways, for example, as 6656400 + 31787044 = 2580^2 + 5638^2 .

It is a super-2 number, since 2×38443444² = 2955796773162272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 725322 + ... + 725374.

It is an arithmetic number, because the mean of its divisors is an integer number (1095255).

Almost surely, 2^38443444 is an apocalyptic number.

It is an amenable number.

38443444 is an abundant number, since it is smaller than the sum of its proper divisors (40414916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38443444 is a wasteful number, since it uses less digits than its factorization.

38443444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 134 counting only the distinct ones).

The product of its digits is 73728, while the sum is 34.

The square root of 38443444 is about 6200.2777357147. The cubic root of 38443444 is about 337.5002476450.

The spelling of 38443444 in words is "thirty-eight million, four hundred forty-three thousand, four hundred forty-four".