1206264405 has 32 divisors (see below), whose sum is σ = 1998259200. Its totient is φ = 620720640.

The previous prime is 1206264391. The next prime is 1206264413. The reversal of 1206264405 is 5044626021.

It is not a de Polignac number, because 1206264405 - 2⁶ = 1206264341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158569 + ... + 166001.

It is an arithmetic number, because the mean of its divisors is an integer number (62445600).

Almost surely, 2^1206264405 is an apocalyptic number.

1206264405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206264405 is a deficient number, since it is larger than the sum of its proper divisors (791994795).

1206264405 is a wasteful number, since it uses less digits than its factorization.

1206264405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7821.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1206264405 is about 34731.3173519232. The cubic root of 1206264405 is about 1064.5045062206.

It can be divided in two parts, 12062 and 64405, that added together give a palindrome (76467).

The spelling of 1206264405 in words is "one billion, two hundred six million, two hundred sixty-four thousand, four hundred five".