2101472 has 24 divisors (see below), whose sum is σ = 4381776. Its totient is φ = 988672.

The previous prime is 2101471. The next prime is 2101481. The reversal of 2101472 is 2741012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2101472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388 + ... + 2475.

It is an arithmetic number, because the mean of its divisors is an integer number (182574).

2^2101472 is an apocalyptic number.

It is an amenable number.

2101472 is an abundant number, since it is smaller than the sum of its proper divisors (2280304).

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

2101472 is a wasteful number, since it uses less digits than its factorization.

2101472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890 (or 3882 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2101472 is about 1449.6454739004. The cubic root of 2101472 is about 128.0878303443.

Adding to 2101472 its reverse (2741012), we get a palindrome (4842484).

The spelling of 2101472 in words is "two million, one hundred one thousand, four hundred seventy-two".