10642520 has 64 divisors (see below), whose sum is σ = 27648000. Its totient is φ = 3611520.

The previous prime is 10642519. The next prime is 10642529. The reversal of 10642520 is 2524601.

It is a happy number.

It is a super-2 number, since 2×10642520² = 226526463900800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10642492 and 10642501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53381 + ... + 53579.

It is an arithmetic number, because the mean of its divisors is an integer number (432000).

Almost surely, 2^10642520 is an apocalyptic number.

10642520 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 10642520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13824000).

10642520 is an abundant number, since it is smaller than the sum of its proper divisors (17005480).

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

10642520 is a wasteful number, since it uses less digits than its factorization.

10642520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 10642520 is about 3262.2875409749. The cubic root of 10642520 is about 219.9622524768.

The spelling of 10642520 in words is "ten million, six hundred forty-two thousand, five hundred twenty".