7961824240 has 40 divisors (see below), whose sum is σ = 19108384128. Its totient is φ = 3081995520.

The previous prime is 7961824237. The next prime is 7961824253. The reversal of 7961824240 is 424281697.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1602727 + ... + 1607686.

Almost surely, 2^7961824240 is an apocalyptic number.

It is an amenable number.

7961824240 is an abundant number, since it is smaller than the sum of its proper divisors (11146559888).

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

7961824240 is a wasteful number, since it uses less digits than its factorization.

7961824240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210457 (or 3210451 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 7961824240 is about 89229.0549092615. The cubic root of 7961824240 is about 1996.8136128310.

The spelling of 7961824240 in words is "seven billion, nine hundred sixty-one million, eight hundred twenty-four thousand, two hundred forty".