1216625034 has 32 divisors (see below), whose sum is σ = 2457449280. Its totient is φ = 401523200.

The previous prime is 1216625029. The next prime is 1216625041. The reversal of 1216625034 is 4305266121.

It is a junction number, because it is equal to n+sod(n) for n = 1216624992 and 1216625010.

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 15 ways as a sum of consecutive naturals, for example, 398554 + ... + 401594.

It is an arithmetic number, because the mean of its divisors is an integer number (76795290).

Almost surely, 2^1216625034 is an apocalyptic number.

1216625034 is an abundant number, since it is smaller than the sum of its proper divisors (1240824246).

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

1216625034 is a wasteful number, since it uses less digits than its factorization.

1216625034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1216625034 is about 34880.1524365935. The cubic root of 1216625034 is about 1067.5435055498.

The spelling of 1216625034 in words is "one billion, two hundred sixteen million, six hundred twenty-five thousand, thirty-four".