2219454 has 32 divisors (see below), whose sum is σ = 5149440. Its totient is φ = 707256.

The previous prime is 2219449. The next prime is 2219461. The reversal of 2219454 is 4549122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349 + ... + 2135.

It is an arithmetic number, because the mean of its divisors is an integer number (160920).

2^2219454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2219454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2574720).

2219454 is an abundant number, since it is smaller than the sum of its proper divisors (2929986).

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

2219454 is a wasteful number, since it uses less digits than its factorization.

2219454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1815 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2219454 is about 1489.7832057048. The cubic root of 2219454 is about 130.4413794055.

The spelling of 2219454 in words is "two million, two hundred nineteen thousand, four hundred fifty-four".