1206506004 has 144 divisors (see below), whose sum is σ = 3297080640. Its totient is φ = 342144000.

The previous prime is 1206505991. The next prime is 1206506033. The reversal of 1206506004 is 4006056021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2786172 + ... + 2786604.

Almost surely, 2^1206506004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206506004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1648540320).

1206506004 is an abundant number, since it is smaller than the sum of its proper divisors (2090574636).

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

1206506004 is a wasteful number, since it uses less digits than its factorization.

1206506004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1206506004 is about 34734.7952923290. The cubic root of 1206506004 is about 1064.5755702579.

The spelling of 1206506004 in words is "one billion, two hundred six million, five hundred six thousand, four".