10640490 has 64 divisors (see below), whose sum is σ = 30468096. Its totient is φ = 2325312.

The previous prime is 10640489. The next prime is 10640491. The reversal of 10640490 is 9404601.

It is an interprime number because it is at equal distance from previous prime (10640489) and next prime (10640491).

It is a super-2 number, since 2×10640490² = 226440054880200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10640490.

It is not an unprimeable number, because it can be changed into a prime (10640491) 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, 3729 + ... + 5931.

It is an arithmetic number, because the mean of its divisors is an integer number (476064).

Almost surely, 2^10640490 is an apocalyptic number.

10640490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10640490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15234048).

10640490 is an abundant number, since it is smaller than the sum of its proper divisors (19827606).

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

10640490 is a wasteful number, since it uses less digits than its factorization.

10640490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 10640490 is about 3261.9763947644. The cubic root of 10640490 is about 219.9482660724.

The spelling of 10640490 in words is "ten million, six hundred forty thousand, four hundred ninety".