1274996736 has 288 divisors, whose sum is σ = 4212379080. Its totient is φ = 368050176.

The previous prime is 1274996731. The next prime is 1274996747. The reversal of 1274996736 is 6376994721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 627803136 + 647193600 = 25056^2 + 25440^2 .

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274996731) 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, 4073316 + ... + 4073628.

Almost surely, 2^1274996736 is an apocalyptic number.

1274996736 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 1274996736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2106189540).

1274996736 is an abundant number, since it is smaller than the sum of its proper divisors (2937382344).

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

1274996736 is a wasteful number, since it uses less digits than its factorization.

1274996736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 348 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 1274996736 is about 35707.0964375431. The cubic root of 1274996736 is about 1084.3505173111.

The spelling of 1274996736 in words is "one billion, two hundred seventy-four million, nine hundred ninety-six thousand, seven hundred thirty-six".