10309894 has 40 divisors (see below), whose sum is σ = 19158840. Its totient is φ = 4148928.

The previous prime is 10309891. The next prime is 10309903. The reversal of 10309894 is 49890301.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10309891) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 91182 + ... + 91294.

It is an arithmetic number, because the mean of its divisors is an integer number (478971).

Almost surely, 2^10309894 is an apocalyptic number.

10309894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10309894 is a deficient number, since it is larger than the sum of its proper divisors (8848946).

10309894 is an equidigital number, since it uses as much as digits as its factorization.

10309894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 10309894 is about 3210.9023653796. The cubic root of 10309894 is about 217.6463558923.

The spelling of 10309894 in words is "ten million, three hundred nine thousand, eight hundred ninety-four".