6406026620 has 48 divisors (see below), whose sum is σ = 15870425088. Its totient is φ = 2125500480.

The previous prime is 6406026593. The next prime is 6406026689. The reversal of 6406026620 is 266206046.

It is a super-2 number, since 2×6406026620² = 82074354112297248800, which contains 22 as substring.

It is a congruent number.

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, 733682 + ... + 742361.

It is an arithmetic number, because the mean of its divisors is an integer number (330633856).

Almost surely, 2^6406026620 is an apocalyptic number.

It is an amenable number.

6406026620 is an abundant number, since it is smaller than the sum of its proper divisors (9464398468).

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

6406026620 is a wasteful number, since it uses less digits than its factorization.

6406026620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476090 (or 1476088 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 6406026620 is about 80037.6575119487. The cubic root of 6406026620 is about 1857.2181233683.

The spelling of 6406026620 in words is "six billion, four hundred six million, twenty-six thousand, six hundred twenty".