2118954 has 24 divisors (see below), whose sum is σ = 4361472. Its totient is φ = 686280.

The previous prime is 2118923. The next prime is 2118959. The reversal of 2118954 is 4598112.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10999 + ... + 11189.

It is an arithmetic number, because the mean of its divisors is an integer number (181728).

2^2118954 is an apocalyptic number.

2118954 is an abundant number, since it is smaller than the sum of its proper divisors (2242518).

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

2118954 is a wasteful number, since it uses less digits than its factorization.

2118954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 239 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 2118954 is about 1455.6627356637. The cubic root of 2118954 is about 128.4420345484.

The spelling of 2118954 in words is "two million, one hundred eighteen thousand, nine hundred fifty-four".