1285462752 has 144 divisors (see below), whose sum is σ = 4097197440. Its totient is φ = 345618432.

The previous prime is 1285462751. The next prime is 1285462753. The reversal of 1285462752 is 2572645821.

It is an interprime number because it is at equal distance from previous prime (1285462751) and next prime (1285462753).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285462751) 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, 190899 + ... + 197517.

It is an arithmetic number, because the mean of its divisors is an integer number (28452760).

Almost surely, 2^1285462752 is an apocalyptic number.

1285462752 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 1285462752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048598720).

1285462752 is an abundant number, since it is smaller than the sum of its proper divisors (2811734688).

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

1285462752 is a wasteful number, since it uses less digits than its factorization.

1285462752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673 (or 6648 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 1285462752 is about 35853.3506383992. The cubic root of 1285462752 is about 1087.3094576460.

The spelling of 1285462752 in words is "one billion, two hundred eighty-five million, four hundred sixty-two thousand, seven hundred fifty-two".