10621040 has 20 divisors (see below), whose sum is σ = 24694104. Its totient is φ = 4248384.

The previous prime is 10621027. The next prime is 10621049. The reversal of 10621040 is 4012601.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10621040² = 225612981363200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10621049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66302 + ... + 66461.

Almost surely, 2^10621040 is an apocalyptic number.

10621040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10621040 is an abundant number, since it is smaller than the sum of its proper divisors (14073064).

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

10621040 is a wasteful number, since it uses less digits than its factorization.

10621040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132776 (or 132770 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 10621040 is about 3258.9937097208. The cubic root of 10621040 is about 219.8141681427.

Adding to 10621040 its reverse (4012601), we get a palindrome (14633641).

The spelling of 10621040 in words is "ten million, six hundred twenty-one thousand, forty".