6240990426 has 32 divisors (see below), whose sum is σ = 13619510208. Its totient is φ = 1890819840.

The previous prime is 6240990409. The next prime is 6240990473.

6240990426 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6240990426² = 77899922994847322952, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607186 + ... + 617378.

It is an arithmetic number, because the mean of its divisors is an integer number (425609694).

Almost surely, 2^6240990426 is an apocalyptic number.

6240990426 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6240990426 is an abundant number, since it is smaller than the sum of its proper divisors (7378519782).

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

6240990426 is a wasteful number, since it uses less digits than its factorization.

6240990426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19486.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 6240990426 is about 78999.9394050401. The cubic root of 6240990426 is about 1841.1302155579.

The spelling of 6240990426 in words is "six billion, two hundred forty million, nine hundred ninety thousand, four hundred twenty-six".