1212047394 has 16 divisors (see below), whose sum is σ = 2424816480. Its totient is φ = 403895520.

The previous prime is 1212047339. The next prime is 1212047401. The reversal of 1212047394 is 4937402121.

It is a Curzon number.

It is an unprimeable number.

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, 6859 + ... + 49710.

It is an arithmetic number, because the mean of its divisors is an integer number (151551030).

Almost surely, 2^1212047394 is an apocalyptic number.

1212047394 is an abundant number, since it is smaller than the sum of its proper divisors (1212769086).

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

1212047394 is a wasteful number, since it uses less digits than its factorization.

1212047394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60145.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1212047394 is about 34814.4710429442. The cubic root of 1212047394 is about 1066.2029194812.

The spelling of 1212047394 in words is "one billion, two hundred twelve million, forty-seven thousand, three hundred ninety-four".