10402668 has 60 divisors (see below), whose sum is σ = 27557992. Its totient is φ = 3421440.

The previous prime is 10402649. The next prime is 10402669. The reversal of 10402668 is 86620401.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10402669) 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, 31263 + ... + 31593.

Almost surely, 2^10402668 is an apocalyptic number.

10402668 is a gapful number since it is divisible by the number (18) 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 10402668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13778996).

10402668 is an abundant number, since it is smaller than the sum of its proper divisors (17155324).

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

10402668 is a wasteful number, since it uses less digits than its factorization.

10402668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 10402668 is about 3225.3167286330. The cubic root of 10402668 is about 218.2972406330.

The spelling of 10402668 in words is "ten million, four hundred two thousand, six hundred sixty-eight".