10388220 has 24 divisors (see below), whose sum is σ = 29087184. Its totient is φ = 2770176.

The previous prime is 10388179. The next prime is 10388221. The reversal of 10388220 is 2288301.

It is a super-2 number, since 2×10388220² = 215830229536800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10388221) 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 7 ways as a sum of consecutive naturals, for example, 86509 + ... + 86628.

It is an arithmetic number, because the mean of its divisors is an integer number (1211966).

Almost surely, 2^10388220 is an apocalyptic number.

10388220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10388220 is an abundant number, since it is smaller than the sum of its proper divisors (18698964).

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

10388220 is a wasteful number, since it uses less digits than its factorization.

10388220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173149 (or 173147 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 10388220 is about 3223.0761703689. The cubic root of 10388220 is about 218.1961313211.

The spelling of 10388220 in words is "ten million, three hundred eighty-eight thousand, two hundred twenty".