99038478 has 48 divisors (see below), whose sum is σ = 247487616. Its totient is φ = 25668720.

The previous prime is 99038477. The next prime is 99038497. The reversal of 99038478 is 87483099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99038477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213675 + ... + 214137.

It is an arithmetic number, because the mean of its divisors is an integer number (5155992).

Almost surely, 2^99038478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99038478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123743808).

99038478 is an abundant number, since it is smaller than the sum of its proper divisors (148449138).

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

99038478 is a wasteful number, since it uses less digits than its factorization.

99038478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 99038478 is about 9951.8077754748. The cubic root of 99038478 is about 462.6664263975. Note that the first 3 decimals are identical.

It can be divided in two parts, 9903 and 8478, that added together give a palindrome (18381).

The spelling of 99038478 in words is "ninety-nine million, thirty-eight thousand, four hundred seventy-eight".