10309340 has 24 divisors (see below), whose sum is σ = 21714000. Its totient is φ = 4111488.

The previous prime is 10309333. The next prime is 10309363. The reversal of 10309340 is 4390301.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9464 + ... + 10496.

It is an arithmetic number, because the mean of its divisors is an integer number (904750).

Almost surely, 2^10309340 is an apocalyptic number.

10309340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10309340 is an abundant number, since it is smaller than the sum of its proper divisors (11404660).

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

10309340 is a wasteful number, since it uses less digits than its factorization.

10309340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 10309340 is about 3210.8160956367. The cubic root of 10309340 is about 217.6424574286.

Adding to 10309340 its reverse (4390301), we get a palindrome (14699641).

The spelling of 10309340 in words is "ten million, three hundred nine thousand, three hundred forty".