1240827216 has 20 divisors (see below), whose sum is σ = 3205470432. Its totient is φ = 413609056.

The previous prime is 1240827191. The next prime is 1240827223. The reversal of 1240827216 is 6127280421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12925236 + ... + 12925331.

Almost surely, 2^1240827216 is an apocalyptic number.

1240827216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1240827216 is an abundant number, since it is smaller than the sum of its proper divisors (1964643216).

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

1240827216 is a wasteful number, since it uses less digits than its factorization.

1240827216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25850578 (or 25850572 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 1240827216 is about 35225.3774429743. The cubic root of 1240827216 is about 1074.5759181034.

The spelling of 1240827216 in words is "one billion, two hundred forty million, eight hundred twenty-seven thousand, two hundred sixteen".