2240154 has 48 divisors (see below), whose sum is σ = 5795712. Its totient is φ = 611424.

The previous prime is 2240137. The next prime is 2240159. The reversal of 2240154 is 4510422.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240159) 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, 2512 + ... + 3284.

It is an arithmetic number, because the mean of its divisors is an integer number (120744).

2^2240154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2240154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897856).

2240154 is an abundant number, since it is smaller than the sum of its proper divisors (3555558).

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

2240154 is a wasteful number, since it uses less digits than its factorization.

2240154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2240154 is about 1496.7144016144. The cubic root of 2240154 is about 130.8456508163.

Adding to 2240154 its reverse (4510422), we get a palindrome (6750576).

It can be divided in two parts, 22 and 40154, that multiplied together give a palindrome (883388).

The spelling of 2240154 in words is "two million, two hundred forty thousand, one hundred fifty-four".