7216697240 has 32 divisors (see below), whose sum is σ = 16247094480. Its totient is φ = 2884985472.

The previous prime is 7216697221. The next prime is 7216697273. The reversal of 7216697240 is 427966127.

It is a junction number, because it is equal to n+sod(n) for n = 7216697191 and 7216697200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17267 + ... + 121373.

Almost surely, 2^7216697240 is an apocalyptic number.

It is an amenable number.

7216697240 is an abundant number, since it is smaller than the sum of its proper divisors (9030397240).

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

7216697240 is a wasteful number, since it uses less digits than its factorization.

7216697240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105851 (or 105847 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 7216697240 is about 84951.1461959166. The cubic root of 7216697240 is about 1932.4703027423.

The spelling of 7216697240 in words is "seven billion, two hundred sixteen million, six hundred ninety-seven thousand, two hundred forty".