8461490388 has 48 divisors (see below), whose sum is σ = 21279720000. Its totient is φ = 2601391104.

The previous prime is 8461490383. The next prime is 8461490407. The reversal of 8461490388 is 8830941648.

It is a self number, because there is not a number n which added to its sum of digits gives 8461490388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461490383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173131 + ... + 216557.

It is an arithmetic number, because the mean of its divisors is an integer number (443327500).

Almost surely, 2^8461490388 is an apocalyptic number.

It is an amenable number.

8461490388 is an abundant number, since it is smaller than the sum of its proper divisors (12818229612).

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

8461490388 is a wasteful number, since it uses less digits than its factorization.

8461490388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44696 (or 44694 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 8461490388 is about 91986.3597931780. The cubic root of 8461490388 is about 2037.7408660909.

The spelling of 8461490388 in words is "eight billion, four hundred sixty-one million, four hundred ninety thousand, three hundred eighty-eight".