1212040369 has 8 divisors (see below), whose sum is σ = 1218974400. Its totient is φ = 1205125296.

The previous prime is 1212040367. The next prime is 1212040397. The reversal of 1212040369 is 9630402121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212040369 - 2¹ = 1212040367 is a prime.

It is a super-2 number, since 2×1212040369² = 2938083712171312322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212040367) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 134982 + ... + 143680.

It is an arithmetic number, because the mean of its divisors is an integer number (152371800).

Almost surely, 2^1212040369 is an apocalyptic number.

It is an amenable number.

1212040369 is a deficient number, since it is larger than the sum of its proper divisors (6934031).

1212040369 is an equidigital number, since it uses as much as digits as its factorization.

1212040369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1212040369 is about 34814.3701508443. The cubic root of 1212040369 is about 1066.2008595810.

The spelling of 1212040369 in words is "one billion, two hundred twelve million, forty thousand, three hundred sixty-nine".