1210000394 has 16 divisors (see below), whose sum is σ = 1838229120. Its totient is φ = 597268320.

The previous prime is 1210000387. The next prime is 1210000397. The reversal of 1210000394 is 4930000121.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1210000397) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 442022 + ... + 444750.

It is an arithmetic number, because the mean of its divisors is an integer number (114889320).

Almost surely, 2^1210000394 is an apocalyptic number.

1210000394 is a deficient number, since it is larger than the sum of its proper divisors (628228726).

1210000394 is a wasteful number, since it uses less digits than its factorization.

1210000394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1210000394 is about 34785.0599252035. The cubic root of 1210000394 is about 1065.6023524270.

The spelling of 1210000394 in words is "one billion, two hundred ten million, three hundred ninety-four", and thus it is an aban number.