4207254640 has 40 divisors (see below), whose sum is σ = 9784641600. Its totient is φ = 1682424576.

The previous prime is 4207254637. The next prime is 4207254661. The reversal of 4207254640 is 464527024.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 4207254596 and 4207254605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452761 + ... + 461959.

It is an arithmetic number, because the mean of its divisors is an integer number (244616040).

Almost surely, 2^4207254640 is an apocalyptic number.

4207254640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4207254640 is an abundant number, since it is smaller than the sum of its proper divisors (5577386960).

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

4207254640 is a wasteful number, since it uses less digits than its factorization.

4207254640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14929 (or 14923 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 4207254640 is about 64863.3535981605. The cubic root of 4207254640 is about 1614.3570675493.

The spelling of 4207254640 in words is "four billion, two hundred seven million, two hundred fifty-four thousand, six hundred forty".