4427517640 has 64 divisors (see below), whose sum is σ = 12260828160. Its totient is φ = 1401235200.

The previous prime is 4427517631. The next prime is 4427517701. The reversal of 4427517640 is 467157244.

It is a super-2 number, since 2×4427517640² = 39205824905022339200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4427517593 and 4427517602.

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, 604536 + ... + 611815.

It is an arithmetic number, because the mean of its divisors is an integer number (191575440).

Almost surely, 2^4427517640 is an apocalyptic number.

4427517640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4427517640 is an abundant number, since it is smaller than the sum of its proper divisors (7833310520).

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

4427517640 is a wasteful number, since it uses less digits than its factorization.

4427517640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216382 (or 1216378 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 4427517640 is about 66539.5945283709. The cubic root of 4427517640 is about 1642.0514730000.

The spelling of 4427517640 in words is "four billion, four hundred twenty-seven million, five hundred seventeen thousand, six hundred forty".