4515420 has 96 divisors (see below), whose sum is σ = 15579648. Its totient is φ = 951552.

The previous prime is 4515419. The next prime is 4515457. The reversal of 4515420 is 245154.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5047 + ... + 5873.

It is an arithmetic number, because the mean of its divisors is an integer number (162288).

Almost surely, 2^4515420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4515420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7789824).

4515420 is an abundant number, since it is smaller than the sum of its proper divisors (11064228).

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

4515420 is a wasteful number, since it uses less digits than its factorization.

4515420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 4515420 is about 2124.9517641584. The cubic root of 4515420 is about 165.2847241913.

The spelling of 4515420 in words is "four million, five hundred fifteen thousand, four hundred twenty".