10690040 has 64 divisors (see below), whose sum is σ = 25608960. Its totient is φ = 4008960.

The previous prime is 10690039. The next prime is 10690087. The reversal of 10690040 is 4009601.

It is a super-2 number, since 2×10690040² = 228553910403200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 10689994 and 10690021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45764 + ... + 45996.

It is an arithmetic number, because the mean of its divisors is an integer number (400140).

Almost surely, 2^10690040 is an apocalyptic number.

10690040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10690040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12804480).

10690040 is an abundant number, since it is smaller than the sum of its proper divisors (14918920).

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

10690040 is a wasteful number, since it uses less digits than its factorization.

10690040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 10690040 is about 3269.5626618861. The cubic root of 10690040 is about 220.2891514750.

Adding to 10690040 its reverse (4009601), we get a palindrome (14699641).

The spelling of 10690040 in words is "ten million, six hundred ninety thousand, forty".