10099620 has 96 divisors (see below), whose sum is σ = 32054400. Its totient is φ = 2639232.

The previous prime is 10099591. The next prime is 10099633. The reversal of 10099620 is 2699001.

10099620 = T₂₆₉ + T₂₇₀ + ... + T₄₃₀.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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, 31702 + ... + 32018.

It is an arithmetic number, because the mean of its divisors is an integer number (333900).

Almost surely, 2^10099620 is an apocalyptic number.

10099620 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 10099620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16027200).

10099620 is an abundant number, since it is smaller than the sum of its proper divisors (21954780).

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

10099620 is a wasteful number, since it uses less digits than its factorization.

10099620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 10099620 is about 3177.9899307581. The cubic root of 10099620 is about 216.1565223526.

The spelling of 10099620 in words is "ten million, ninety-nine thousand, six hundred twenty".