2101924 has 48 divisors (see below), whose sum is σ = 4386816. Its totient is φ = 871200.

The previous prime is 2101909. The next prime is 2101961. The reversal of 2101924 is 4291012.

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, 31339 + ... + 31405.

It is an arithmetic number, because the mean of its divisors is an integer number (91392).

2^2101924 is an apocalyptic number.

It is an amenable number.

2101924 is an abundant number, since it is smaller than the sum of its proper divisors (2284892).

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

2101924 is a wasteful number, since it uses less digits than its factorization.

2101924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2101924 is about 1449.8013657050. The cubic root of 2101924 is about 128.0970130424.

Adding to 2101924 its reverse (4291012), we get a palindrome (6392936).

It can be divided in two parts, 2101 and 924, that added together give a square (3025 = 55²).

The spelling of 2101924 in words is "two million, one hundred one thousand, nine hundred twenty-four".