1206012240 has 100 divisors (see below), whose sum is σ = 4188681684. Its totient is φ = 321601536.

The previous prime is 1206012229. The next prime is 1206012259. The reversal of 1206012240 is 422106021.

1206012240 is a `hidden beast` number, since 1 + 2 + 0 + 601 + 22 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 271854144 + 934158096 = 16488^2 + 30564^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 86577 + ... + 99536.

Almost surely, 2^1206012240 is an apocalyptic number.

1206012240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206012240 is an abundant number, since it is smaller than the sum of its proper divisors (2982669444).

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

1206012240 is a wasteful number, since it uses less digits than its factorization.

1206012240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186138 (or 186123 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1206012240 is about 34727.6869370823. The cubic root of 1206012240 is about 1064.4303241743.

Adding to 1206012240 its reverse (422106021), we get a palindrome (1628118261).

The spelling of 1206012240 in words is "one billion, two hundred six million, twelve thousand, two hundred forty".