4474899621 has 32 divisors (see below), whose sum is σ = 6894963200. Its totient is φ = 2865844800.

The previous prime is 4474899601. The next prime is 4474899623. The reversal of 4474899621 is 1269984744.

4474899621 is a `hidden beast` number, since 4 + 4 + 7 + 4 + 8 + 9 + 9 + 621 = 666.

4474899621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4474899621 - 2¹⁸ = 4474637477 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4474899623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50571 + ... + 107271.

It is an arithmetic number, because the mean of its divisors is an integer number (215467600).

Almost surely, 2^4474899621 is an apocalyptic number.

It is an amenable number.

4474899621 is a deficient number, since it is larger than the sum of its proper divisors (2420063579).

4474899621 is a wasteful number, since it uses less digits than its factorization.

4474899621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56826 (or 56820 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 4474899621 is about 66894.6905292191. The cubic root of 4474899621 is about 1647.8882836430. Note that the first 3 decimals are identical.

The spelling of 4474899621 in words is "four billion, four hundred seventy-four million, eight hundred ninety-nine thousand, six hundred twenty-one".