10389438 has 32 divisors (see below), whose sum is σ = 23193120. Its totient is φ = 3447360.

The previous prime is 10389427. The next prime is 10389443. The reversal of 10389438 is 83498301.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22506 + ... + 22962.

It is an arithmetic number, because the mean of its divisors is an integer number (724785).

Almost surely, 2^10389438 is an apocalyptic number.

10389438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10389438 is an abundant number, since it is smaller than the sum of its proper divisors (12803682).

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

10389438 is a wasteful number, since it uses less digits than its factorization.

10389438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 10389438 is about 3223.2651147555. The cubic root of 10389438 is about 218.2046586884.

The spelling of 10389438 in words is "ten million, three hundred eighty-nine thousand, four hundred thirty-eight".