1332247752 has 144 divisors (see below), whose sum is σ = 4074181020. Its totient is φ = 392705280.

The previous prime is 1332247751. The next prime is 1332247781. The reversal of 1332247752 is 2577422331.

1332247752 is a `hidden beast` number, since 133 + 2 + 2 + 477 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1173336516 + 158911236 = 34254^2 + 12606^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1332247751) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 320278 + ... + 324410.

Almost surely, 2^1332247752 is an apocalyptic number.

1332247752 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 1332247752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037090510).

1332247752 is an abundant number, since it is smaller than the sum of its proper divisors (2741933268).

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

1332247752 is a wasteful number, since it uses less digits than its factorization.

1332247752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204 (or 4186 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 1332247752 is about 36499.9692054665. The cubic root of 1332247752 is about 1100.3436259778.

The spelling of 1332247752 in words is "one billion, three hundred thirty-two million, two hundred forty-seven thousand, seven hundred fifty-two".