1299946752 has 576 divisors, whose sum is σ = 4697602560. Its totient is φ = 350355456.

The previous prime is 1299946751. The next prime is 1299946757. The reversal of 1299946752 is 2576499921.

1299946752 is a `hidden beast` number, since 129 + 9 + 9 + 467 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299946751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35133678 + ... + 35133714.

It is an arithmetic number, because the mean of its divisors is an integer number (8155560).

Almost surely, 2^1299946752 is an apocalyptic number.

1299946752 is a gapful number since it is divisible by the number (12) 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 1299946752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2348801280).

1299946752 is an abundant number, since it is smaller than the sum of its proper divisors (3397655808).

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

1299946752 is a wasteful number, since it uses less digits than its factorization.

1299946752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 95 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 1299946752 is about 36054.7743301771. The cubic root of 1299946752 is about 1091.3779817068.

The spelling of 1299946752 in words is "one billion, two hundred ninety-nine million, nine hundred forty-six thousand, seven hundred fifty-two".