38073440 has 24 divisors (see below), whose sum is σ = 89948880. Its totient is φ = 15229312.

The previous prime is 38073439. The next prime is 38073443. The reversal of 38073440 is 4437083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38073443) 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, 118820 + ... + 119139.

It is an arithmetic number, because the mean of its divisors is an integer number (3747870).

Almost surely, 2^38073440 is an apocalyptic number.

It is an amenable number.

38073440 is an abundant number, since it is smaller than the sum of its proper divisors (51875440).

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

38073440 is a wasteful number, since it uses less digits than its factorization.

38073440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237974 (or 237966 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 38073440 is about 6170.3678982699. The cubic root of 38073440 is about 336.4139832997.

The spelling of 38073440 in words is "thirty-eight million, seventy-three thousand, four hundred forty".