2198504 has 64 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 826560.

The previous prime is 2198477. The next prime is 2198507. The reversal of 2198504 is 4058912.

Together with 3123735 it forms a betrothed pair.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2198507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26447 + ... + 26529.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2^2198504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2198504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661120).

2198504 is an abundant number, since it is smaller than the sum of its proper divisors (3123736).

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

2198504 is a wasteful number, since it uses less digits than its factorization.

2198504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2198504 is about 1482.7353101616. The cubic root of 2198504 is about 130.0296579277.

The spelling of 2198504 in words is "two million, one hundred ninety-eight thousand, five hundred four".