210403412 has 6 divisors (see below), whose sum is σ = 368205978. Its totient is φ = 105201704.

The previous prime is 210403351. The next prime is 210403433. The reversal of 210403412 is 214304012.

It can be written as a sum of positive squares in only one way, i.e., 185940496 + 24462916 = 13636^2 + 4946^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26300423 + ... + 26300430.

It is an arithmetic number, because the mean of its divisors is an integer number (61367663).

Almost surely, 2^210403412 is an apocalyptic number.

It is an amenable number.

210403412 is a deficient number, since it is larger than the sum of its proper divisors (157802566).

210403412 is a wasteful number, since it uses less digits than its factorization.

210403412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52600857 (or 52600855 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 210403412 is about 14505.2891043233. The cubic root of 210403412 is about 594.7725628396.

Adding to 210403412 its reverse (214304012), we get a palindrome (424707424).

The spelling of 210403412 in words is "two hundred ten million, four hundred three thousand, four hundred twelve".