1242452480 has 80 divisors (see below), whose sum is σ = 3154318200. Its totient is φ = 467730432.

The previous prime is 1242452461. The next prime is 1242452483. The reversal of 1242452480 is 842542421.

It can be written as a sum of positive squares in 4 ways, for example, as 972441856 + 270010624 = 31184^2 + 16432^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1242452483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29246 + ... + 57794.

Almost surely, 2^1242452480 is an apocalyptic number.

1242452480 is a gapful number since it is divisible by the number (10) 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 1242452480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577159100).

1242452480 is an abundant number, since it is smaller than the sum of its proper divisors (1911865720).

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

1242452480 is an equidigital number, since it uses as much as digits as its factorization.

1242452480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28589 (or 28573 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

The square root of 1242452480 is about 35248.4393980783. The cubic root of 1242452480 is about 1075.0448814865.

The spelling of 1242452480 in words is "one billion, two hundred forty-two million, four hundred fifty-two thousand, four hundred eighty".