1206726144 has 160 divisors (see below), whose sum is σ = 3490443264. Its totient is φ = 368271360.

The previous prime is 1206726121. The next prime is 1206726151. The reversal of 1206726144 is 4416276021.

It is a super-2 number, since 2×1206726144² = 2912375973226217472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4452729 + ... + 4452999.

Almost surely, 2^1206726144 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 1206726144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1745221632).

1206726144 is an abundant number, since it is smaller than the sum of its proper divisors (2283717120).

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

1206726144 is a wasteful number, since it uses less digits than its factorization.

1206726144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1206726144 is about 34737.9640163323. The cubic root of 1206726144 is about 1064.6403140755.

The spelling of 1206726144 in words is "one billion, two hundred six million, seven hundred twenty-six thousand, one hundred forty-four".