10465640 has 16 divisors (see below), whose sum is σ = 23547780. Its totient is φ = 4186240.

The previous prime is 10465627. The next prime is 10465643. The reversal of 10465640 is 4656401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10407076 + 58564 = 3226^2 + 242^2 .

It is not an unprimeable number, because it can be changed into a prime (10465643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 130781 + ... + 130860.

Almost surely, 2^10465640 is an apocalyptic number.

10465640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10465640 is an abundant number, since it is smaller than the sum of its proper divisors (13082140).

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

10465640 is a wasteful number, since it uses less digits than its factorization.

10465640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261652 (or 261648 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 10465640 is about 3235.0641415589. The cubic root of 10465640 is about 218.7368383918.

The spelling of 10465640 in words is "ten million, four hundred sixty-five thousand, six hundred forty".