4485403998 has 80 divisors (see below), whose sum is σ = 10661763024. Its totient is φ = 1404552960.

The previous prime is 4485403991. The next prime is 4485404009. The reversal of 4485403998 is 8993045844.

4485403998 is a `hidden beast` number, since 4 + 4 + 8 + 540 + 3 + 9 + 98 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4485403991) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1901836 + ... + 1904192.

Almost surely, 2^4485403998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4485403998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5330881512).

4485403998 is an abundant number, since it is smaller than the sum of its proper divisors (6176359026).

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

4485403998 is a wasteful number, since it uses less digits than its factorization.

4485403998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079 (or 3070 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 4485403998 is about 66973.1587876815. The cubic root of 4485403998 is about 1649.1766933922.

The spelling of 4485403998 in words is "four billion, four hundred eighty-five million, four hundred three thousand, nine hundred ninety-eight".