6462040040 has 64 divisors (see below), whose sum is σ = 14621720400. Its totient is φ = 2570268672.

The previous prime is 6462040033. The next prime is 6462040097. The reversal of 6462040040 is 400402646.

It can be written as a sum of positive squares in 8 ways, for example, as 4459835524 + 2002204516 = 66782^2 + 44746^2 .

It is a super-2 number, since 2×6462040040² = 83515922957126403200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6462039991 and 6462040009.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8815514 + ... + 8816246.

Almost surely, 2^6462040040 is an apocalyptic number.

It is an amenable number.

6462040040 is an abundant number, since it is smaller than the sum of its proper divisors (8159680360).

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

6462040040 is a wasteful number, since it uses less digits than its factorization.

6462040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 6462040040 is about 80386.8150880479. The cubic root of 6462040040 is about 1862.6155094945.

Adding to 6462040040 its reverse (400402646), we get a palindrome (6862442686).

The spelling of 6462040040 in words is "six billion, four hundred sixty-two million, forty thousand, forty".