1206930840 has 128 divisors (see below), whose sum is σ = 3725092800. Its totient is φ = 312698880.

The previous prime is 1206930839. The next prime is 1206930841. The reversal of 1206930840 is 480396021.

It is an interprime number because it is at equal distance from previous prime (1206930839) and next prime (1206930841).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206930841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 692370 + ... + 694110.

Almost surely, 2^1206930840 is an apocalyptic number.

1206930840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206930840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862546400).

1206930840 is an abundant number, since it is smaller than the sum of its proper divisors (2518161960).

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

1206930840 is a wasteful number, since it uses less digits than its factorization.

1206930840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1206930840 is about 34740.9101780595. The cubic root of 1206930840 is about 1064.7005087031.

The spelling of 1206930840 in words is "one billion, two hundred six million, nine hundred thirty thousand, eight hundred forty".