4621227840 has 84 divisors (see below), whose sum is σ = 15895108164. Its totient is φ = 1232326656.

The previous prime is 4621227829. The next prime is 4621227851. The reversal of 4621227840 is 487221264.

4621227840 is a `hidden beast` number, since 4 + 621 + 2 + 27 + 8 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (4621227829) and next prime (4621227851).

It can be written as a sum of positive squares in 2 ways, for example, as 2991652416 + 1629575424 = 54696^2 + 40368^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4621227795 and 4621227804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 799417 + ... + 805176.

Almost surely, 2^4621227840 is an apocalyptic number.

4621227840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4621227840 is an abundant number, since it is smaller than the sum of its proper divisors (11273880324).

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

4621227840 is a wasteful number, since it uses less digits than its factorization.

4621227840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604616 (or 1604603 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 4621227840 is about 67979.6134146113. The cubic root of 4621227840 is about 1665.6578413973.

The spelling of 4621227840 in words is "four billion, six hundred twenty-one million, two hundred twenty-seven thousand, eight hundred forty".