1236552480 has 120 divisors (see below), whose sum is σ = 4364045532. Its totient is φ = 329743872.

The previous prime is 1236552463. The next prime is 1236552491. The reversal of 1236552480 is 842556321.

1236552480 is a `hidden beast` number, since 1 + 23 + 6 + 552 + 4 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1172103696 + 64448784 = 34236^2 + 8028^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34747 + ... + 60666.

Almost surely, 2^1236552480 is an apocalyptic number.

1236552480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1236552480 is an abundant number, since it is smaller than the sum of its proper divisors (3127493052).

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

1236552480 is an equidigital number, since it uses as much as digits as its factorization.

1236552480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95440 (or 95423 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1236552480 is about 35164.6481569203. The cubic root of 1236552480 is about 1073.3405020761.

The spelling of 1236552480 in words is "one billion, two hundred thirty-six million, five hundred fifty-two thousand, four hundred eighty".