4051520 has 56 divisors (see below), whose sum is σ = 10533888. Its totient is φ = 1472000.

The previous prime is 4051517. The next prime is 4051529. The reversal of 4051520 is 251504.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2945 + ... + 4095.

Almost surely, 2^4051520 is an apocalyptic number.

4051520 is a gapful number since it is divisible by the number (40) 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 4051520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5266944).

4051520 is an abundant number, since it is smaller than the sum of its proper divisors (6482368).

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

4051520 is a wasteful number, since it uses less digits than its factorization.

4051520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 4051520 is about 2012.8387913591. The cubic root of 4051520 is about 159.4187241304.

The spelling of 4051520 in words is "four million, fifty-one thousand, five hundred twenty".