10311390 has 24 divisors (see below), whose sum is σ = 26809848. Its totient is φ = 2749680.

The previous prime is 10311347. The next prime is 10311397. The reversal of 10311390 is 9311301.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57196 + ... + 57375.

It is an arithmetic number, because the mean of its divisors is an integer number (1117077).

Almost surely, 2^10311390 is an apocalyptic number.

10311390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10311390 is an abundant number, since it is smaller than the sum of its proper divisors (16498458).

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

10311390 is a wasteful number, since it uses less digits than its factorization.

10311390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114584 (or 114581 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 10311390 is about 3211.1353132498. The cubic root of 10311390 is about 217.6568824538.

Adding to 10311390 its reverse (9311301), we get a palindrome (19622691).

It can be divided in two parts, 10311 and 390, that added together give a palindrome (10701).

The spelling of 10311390 in words is "ten million, three hundred eleven thousand, three hundred ninety".