4091472 has 200 divisors, whose sum is σ = 15124032. Its totient is φ = 1036800.

The previous prime is 4091471. The next prime is 4091537. The reversal of 4091472 is 2741904.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091471) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 99772 + ... + 99812.

Almost surely, 2^4091472 is an apocalyptic number.

4091472 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4091472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7562016).

4091472 is an abundant number, since it is smaller than the sum of its proper divisors (11032560).

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

4091472 is a wasteful number, since it uses less digits than its factorization.

4091472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 4091472 is about 2022.7387374547. The cubic root of 4091472 is about 159.9410199278.

It can be divided in two parts, 409 and 1472, that added together give a palindrome (1881).

The spelling of 4091472 in words is "four million, ninety-one thousand, four hundred seventy-two".