10399212 has 24 divisors (see below), whose sum is σ = 26961200. Its totient is φ = 3466368.

The previous prime is 10399201. The next prime is 10399217. The reversal of 10399212 is 21299301.

It is a super-2 number, since 2×10399212² = 216287220441888, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (10399217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48037 + ... + 48252.

Almost surely, 2^10399212 is an apocalyptic number.

10399212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10399212 is an abundant number, since it is smaller than the sum of its proper divisors (16561988).

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

10399212 is a wasteful number, since it uses less digits than its factorization.

10399212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96302 (or 96294 counting only the distinct ones).

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

The square root of 10399212 is about 3224.7809227915. The cubic root of 10399212 is about 218.2730635397.

The spelling of 10399212 in words is "ten million, three hundred ninety-nine thousand, two hundred twelve".