38409830 has 32 divisors (see below), whose sum is σ = 73461600. Its totient is φ = 14418432.

The previous prime is 38409823. The next prime is 38409841. The reversal of 38409830 is 3890483.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20576 + ... + 22364.

It is an arithmetic number, because the mean of its divisors is an integer number (2295675).

Almost surely, 2^38409830 is an apocalyptic number.

38409830 is a deficient number, since it is larger than the sum of its proper divisors (35051770).

38409830 is a wasteful number, since it uses less digits than its factorization.

38409830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 38409830 is about 6197.5664578930. The cubic root of 38409830 is about 337.4018516614.

The spelling of 38409830 in words is "thirty-eight million, four hundred nine thousand, eight hundred thirty".