1206991480 has 32 divisors (see below), whose sum is σ = 2753987040. Its totient is φ = 475995520.

The previous prime is 1206991463. The next prime is 1206991507. The reversal of 1206991480 is 841996021.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209659 + ... + 215338.

It is an arithmetic number, because the mean of its divisors is an integer number (86062095).

Almost surely, 2^1206991480 is an apocalyptic number.

1206991480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206991480 is an abundant number, since it is smaller than the sum of its proper divisors (1546995560).

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

1206991480 is a wasteful number, since it uses less digits than its factorization.

1206991480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425079 (or 425075 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1206991480 is about 34741.7829133739. The cubic root of 1206991480 is about 1064.7183397048.

The spelling of 1206991480 in words is "one billion, two hundred six million, nine hundred ninety-one thousand, four hundred eighty".