38409744 has 80 divisors (see below), whose sum is σ = 103993344. Its totient is φ = 12201600.

The previous prime is 38409739. The next prime is 38409751. The reversal of 38409744 is 44790483.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123349 + ... + 123659.

Almost surely, 2^38409744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38409744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51996672).

38409744 is an abundant number, since it is smaller than the sum of its proper divisors (65583600).

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

38409744 is a wasteful number, since it uses less digits than its factorization.

38409744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 38409744 is about 6197.5595196819. The cubic root of 38409744 is about 337.4015998459.

The spelling of 38409744 in words is "thirty-eight million, four hundred nine thousand, seven hundred forty-four".