38840242 has 24 divisors (see below), whose sum is σ = 68085360. Its totient is φ = 16569000.

The previous prime is 38840233. The next prime is 38840267. The reversal of 38840242 is 24204883.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23809 + ... + 25387.

It is an arithmetic number, because the mean of its divisors is an integer number (2836890).

Almost surely, 2^38840242 is an apocalyptic number.

38840242 is a deficient number, since it is larger than the sum of its proper divisors (29245118).

38840242 is a wasteful number, since it uses less digits than its factorization.

38840242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 38840242 is about 6232.1939956969. The cubic root of 38840242 is about 338.6574565992.

The spelling of 38840242 in words is "thirty-eight million, eight hundred forty thousand, two hundred forty-two".