10689420 has 96 divisors (see below), whose sum is σ = 35352576. Its totient is φ = 2361600.

The previous prime is 10689391. The next prime is 10689421. The reversal of 10689420 is 2498601.

It is a super-2 number, since 2×10689420² = 228527399872800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10689421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12610 + ... + 13430.

It is an arithmetic number, because the mean of its divisors is an integer number (368256).

Almost surely, 2^10689420 is an apocalyptic number.

10689420 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 10689420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17676288).

10689420 is an abundant number, since it is smaller than the sum of its proper divisors (24663156).

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

10689420 is a wasteful number, since it uses less digits than its factorization.

10689420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 10689420 is about 3269.4678466075. The cubic root of 10689420 is about 220.2848926223.

The spelling of 10689420 in words is "ten million, six hundred eighty-nine thousand, four hundred twenty".