4378998 has 32 divisors (see below), whose sum is σ = 9741312. Its totient is φ = 1303200.

The previous prime is 4378981. The next prime is 4379003. The reversal of 4378998 is 8998734.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (304416).

Almost surely, 2^4378998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4378998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4870656).

4378998 is an abundant number, since it is smaller than the sum of its proper divisors (5362314).

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

4378998 is a wasteful number, since it uses less digits than its factorization.

4378998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860.

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

The square root of 4378998 is about 2092.6055528933. The cubic root of 4378998 is about 163.6031202391.

The spelling of 4378998 in words is "four million, three hundred seventy-eight thousand, nine hundred ninety-eight".