6462662440 has 32 divisors (see below), whose sum is σ = 15659529480. Its totient is φ = 2386213632.

The previous prime is 6462662417. The next prime is 6462662447. The reversal of 6462662440 is 442662646.

It can be written as a sum of positive squares in 4 ways, for example, as 5612706724 + 849955716 = 74918^2 + 29154^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 6462662393 and 6462662402.

It is not an unprimeable number, because it can be changed into a prime (6462662447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6213579 + ... + 6214618.

Almost surely, 2^6462662440 is an apocalyptic number.

It is an amenable number.

6462662440 is an abundant number, since it is smaller than the sum of its proper divisors (9196867040).

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

6462662440 is a wasteful number, since it uses less digits than its factorization.

6462662440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12428221 (or 12428217 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The square root of 6462662440 is about 80390.6862764587. The cubic root of 6462662440 is about 1862.6753076732.

The spelling of 6462662440 in words is "six billion, four hundred sixty-two million, six hundred sixty-two thousand, four hundred forty".