10400212 has 12 divisors (see below), whose sum is σ = 18828180. Its totient is φ = 5020736.

The previous prime is 10400189. The next prime is 10400231. The reversal of 10400212 is 21200401.

It can be written as a sum of positive squares in 2 ways, for example, as 8561476 + 1838736 = 2926^2 + 1356^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44713 + ... + 44944.

It is an arithmetic number, because the mean of its divisors is an integer number (1569015).

Almost surely, 2^10400212 is an apocalyptic number.

It is an amenable number.

10400212 is a deficient number, since it is larger than the sum of its proper divisors (8427968).

10400212 is a wasteful number, since it uses less digits than its factorization.

10400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89690 (or 89688 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 10400212 is about 3224.9359683566. The cubic root of 10400212 is about 218.2800597771.

Adding to 10400212 its reverse (21200401), we get a palindrome (31600613).

The spelling of 10400212 in words is "ten million, four hundred thousand, two hundred twelve".