1212795276 has 72 divisors (see below), whose sum is σ = 3591153216. Its totient is φ = 315010080.

The previous prime is 1212795271. The next prime is 1212795301. The reversal of 1212795276 is 6725972121.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1212795271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87286 + ... + 100221.

It is an arithmetic number, because the mean of its divisors is an integer number (49877128).

Almost surely, 2^1212795276 is an apocalyptic number.

It is an amenable number.

1212795276 is an abundant number, since it is smaller than the sum of its proper divisors (2378357940).

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

1212795276 is a wasteful number, since it uses less digits than its factorization.

1212795276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187539 (or 187530 counting only the distinct ones).

The product of its digits is 105840, while the sum is 42.

The square root of 1212795276 is about 34825.2103511235. The cubic root of 1212795276 is about 1066.4221710891.

The spelling of 1212795276 in words is "one billion, two hundred twelve million, seven hundred ninety-five thousand, two hundred seventy-six".