2141604 has 72 divisors (see below), whose sum is σ = 5940480. Its totient is φ = 648000.

The previous prime is 2141603. The next prime is 2141617. The reversal of 2141604 is 4061412.

2141604 is a `hidden beast` number, since 21 + 41 + 604 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2141603) 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, 21154 + ... + 21254.

2^2141604 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 2141604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2970240).

2141604 is an abundant number, since it is smaller than the sum of its proper divisors (3798876).

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

2141604 is a wasteful number, since it uses less digits than its factorization.

2141604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2141604 is about 1463.4220170545. The cubic root of 2141604 is about 128.8980626095.

Subtracting from 2141604 its product of nonzero digits (192), we obtain a palindrome (2141412).

The spelling of 2141604 in words is "two million, one hundred forty-one thousand, six hundred four".