4450374921 has 8 divisors (see below), whose sum is σ = 6246140320. Its totient is φ = 2810763072.

The previous prime is 4450374919. The next prime is 4450374931. The reversal of 4450374921 is 1294730544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4450374921 - 2¹ = 4450374919 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4450374921.

It is not an unprimeable number, because it can be changed into a prime (4450374931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39038320 + ... + 39038433.

It is an arithmetic number, because the mean of its divisors is an integer number (780767540).

Almost surely, 2^4450374921 is an apocalyptic number.

It is an amenable number.

4450374921 is a deficient number, since it is larger than the sum of its proper divisors (1795765399).

4450374921 is a wasteful number, since it uses less digits than its factorization.

4450374921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78076775.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 4450374921 is about 66711.1304131477. The cubic root of 4450374921 is about 1644.8723485046.

The spelling of 4450374921 in words is "four billion, four hundred fifty million, three hundred seventy-four thousand, nine hundred twenty-one".