6490022450 has 18 divisors (see below), whose sum is σ = 12072501399. Its totient is φ = 2595781120.

The previous prime is 6490022437. The next prime is 6490022467. The reversal of 6490022450 is 542200946.

It can be written as a sum of positive squares in 5 ways, for example, as 3969882049 + 2520140401 = 63007^2 + 50201^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=56965.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 563954 + ... + 575346.

Almost surely, 2^6490022450 is an apocalyptic number.

6490022450 is a deficient number, since it is larger than the sum of its proper divisors (5582478949).

6490022450 is an frugal number, since it uses more digits than its factorization.

6490022450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22798 (or 11400 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6490022450 is about 80560.6755805834. The cubic root of 6490022450 is about 1865.3001838395.

Multiplying 6490022450 by its sum of digits (32), we get a square (207680718400 = 455720²).

The spelling of 6490022450 in words is "six billion, four hundred ninety million, twenty-two thousand, four hundred fifty".