4225640646 has 24 divisors (see below), whose sum is σ = 8662458312. Its totient is φ = 1374188800.

The previous prime is 4225640599. The next prime is 4225640681. The reversal of 4225640646 is 6460465224.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199395 + ... + 219566.

It is an arithmetic number, because the mean of its divisors is an integer number (360935763).

Almost surely, 2^4225640646 is an apocalyptic number.

4225640646 is an abundant number, since it is smaller than the sum of its proper divisors (4436817666).

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

4225640646 is a wasteful number, since it uses less digits than its factorization.

4225640646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419048 (or 419007 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The square root of 4225640646 is about 65004.9278593554. The cubic root of 4225640646 is about 1616.7052691719.

The spelling of 4225640646 in words is "four billion, two hundred twenty-five million, six hundred forty thousand, six hundred forty-six".