10256620 has 48 divisors (see below), whose sum is σ = 24530688. Its totient is φ = 3565760.

The previous prime is 10256579. The next prime is 10256621. The reversal of 10256620 is 2665201.

10256620 = T₃₅₂ + T₃₅₃ + ... + T₄₇₁.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 10256591 and 10256600.

It is not an unprimeable number, because it can be changed into a prime (10256621) 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, 4047 + ... + 6073.

It is an arithmetic number, because the mean of its divisors is an integer number (511056).

Almost surely, 2^10256620 is an apocalyptic number.

10256620 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 10256620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12265344).

10256620 is an abundant number, since it is smaller than the sum of its proper divisors (14274068).

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

10256620 is a wasteful number, since it uses less digits than its factorization.

10256620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 10256620 is about 3202.5958221418. The cubic root of 10256620 is about 217.2708292120.

The spelling of 10256620 in words is "ten million, two hundred fifty-six thousand, six hundred twenty".