2100424 has 8 divisors (see below), whose sum is σ = 3938310. Its totient is φ = 1050208.

The previous prime is 2100409. The next prime is 2100451. The reversal of 2100424 is 4240012.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 777924 = 1150^2 + 882^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131269 + ... + 131284.

2^2100424 is an apocalyptic number.

It is an amenable number.

2100424 is a deficient number, since it is larger than the sum of its proper divisors (1837886).

2100424 is a wasteful number, since it uses less digits than its factorization.

2100424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262559 (or 262555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2100424 is about 1449.2839611339. The cubic root of 2100424 is about 128.0665344198.

Adding to 2100424 its reverse (4240012), we get a palindrome (6340436).

The spelling of 2100424 in words is "two million, one hundred thousand, four hundred twenty-four".