4078998 has 96 divisors (see below), whose sum is σ = 11531520. Its totient is φ = 1049760.

The previous prime is 4078993. The next prime is 4078999. The reversal of 4078998 is 8998704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37368 + ... + 37476.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

Almost surely, 2^4078998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4078998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5765760).

4078998 is an abundant number, since it is smaller than the sum of its proper divisors (7452522).

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

4078998 is a wasteful number, since it uses less digits than its factorization.

4078998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4078998 is about 2019.6529404826. The cubic root of 4078998 is about 159.7783127759.

The spelling of 4078998 in words is "four million, seventy-eight thousand, nine hundred ninety-eight".