38431448 has 32 divisors (see below), whose sum is σ = 79729920. Its totient is φ = 17220000.

The previous prime is 38431429. The next prime is 38431451. The reversal of 38431448 is 84413483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173 + ... + 9323.

It is an arithmetic number, because the mean of its divisors is an integer number (2491560).

Almost surely, 2^38431448 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 38431448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39864960).

38431448 is an abundant number, since it is smaller than the sum of its proper divisors (41298472).

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

38431448 is a wasteful number, since it uses less digits than its factorization.

38431448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239 (or 6235 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 38431448 is about 6199.3102842171. The cubic root of 38431448 is about 337.4651391519.

The spelling of 38431448 in words is "thirty-eight million, four hundred thirty-one thousand, four hundred forty-eight".