1274697216 has 320 divisors, whose sum is σ = 4186607040. Its totient is φ = 380436480.

The previous prime is 1274697173. The next prime is 1274697217. The reversal of 1274697216 is 6127964721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274697217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7368106 + ... + 7368278.

It is an arithmetic number, because the mean of its divisors is an integer number (13083147).

Almost surely, 2^1274697216 is an apocalyptic number.

1274697216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1274697216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2093303520).

1274697216 is an abundant number, since it is smaller than the sum of its proper divisors (2911909824).

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

1274697216 is a wasteful number, since it uses less digits than its factorization.

1274697216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 232 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1274697216 is about 35702.9020669189. The cubic root of 1274697216 is about 1084.2655994197.

The spelling of 1274697216 in words is "one billion, two hundred seventy-four million, six hundred ninety-seven thousand, two hundred sixteen".