38393902 has 4 divisors (see below), whose sum is σ = 57590856. Its totient is φ = 19196950.

The previous prime is 38393899. The next prime is 38393933. The reversal of 38393902 is 20939383.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9598474 + ... + 9598477.

It is an arithmetic number, because the mean of its divisors is an integer number (14397714).

Almost surely, 2^38393902 is an apocalyptic number.

38393902 is a deficient number, since it is larger than the sum of its proper divisors (19196954).

38393902 is a wasteful number, since it uses less digits than its factorization.

38393902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19196953.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 38393902 is about 6196.2813041372. The cubic root of 38393902 is about 337.3552066600.

The spelling of 38393902 in words is "thirty-eight million, three hundred ninety-three thousand, nine hundred two".