9619487440 has 40 divisors (see below), whose sum is σ = 22744392480. Its totient is φ = 3782576256.

The previous prime is 9619487431. The next prime is 9619487453. The reversal of 9619487440 is 447849169.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014294 + ... + 1023733.

It is an arithmetic number, because the mean of its divisors is an integer number (568609812).

Almost surely, 2^9619487440 is an apocalyptic number.

It is an amenable number.

9619487440 is an abundant number, since it is smaller than the sum of its proper divisors (13124905040).

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

9619487440 is a wasteful number, since it uses less digits than its factorization.

9619487440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038099 (or 2038093 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 9619487440 is about 98078.9857206935. The cubic root of 9619487440 is about 2126.7542563196.

The spelling of 9619487440 in words is "nine billion, six hundred nineteen million, four hundred eighty-seven thousand, four hundred forty".