38408642 has 8 divisors (see below), whose sum is σ = 57692736. Its totient is φ = 19177732.

The previous prime is 38408611. The next prime is 38408647. The reversal of 38408642 is 24680483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (38408647) 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, 11438 + ... + 14409.

It is an arithmetic number, because the mean of its divisors is an integer number (7211592).

Almost surely, 2^38408642 is an apocalyptic number.

38408642 is a deficient number, since it is larger than the sum of its proper divisors (19284094).

38408642 is a wasteful number, since it uses less digits than its factorization.

38408642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26592.

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

The square root of 38408642 is about 6197.4706130808. The cubic root of 38408642 is about 337.3983730595.

The spelling of 38408642 in words is "thirty-eight million, four hundred eight thousand, six hundred forty-two".