4720040 has 64 divisors (see below), whose sum is σ = 11869200. Its totient is φ = 1677312.

The previous prime is 4720039. The next prime is 4720049. The reversal of 4720040 is 400274.

It can be written as a sum of positive squares in 8 ways, for example, as 148996 + 4571044 = 386^2 + 2138^2 .

It is not an unprimeable number, because it can be changed into a prime (4720049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14924 + ... + 15236.

Almost surely, 2^4720040 is an apocalyptic number.

4720040 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 4720040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5934600).

4720040 is an abundant number, since it is smaller than the sum of its proper divisors (7149160).

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

4720040 is a wasteful number, since it uses less digits than its factorization.

4720040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 4720040 is about 2172.5653039667. The cubic root of 4720040 is about 167.7446043827.

The spelling of 4720040 in words is "four million, seven hundred twenty thousand, forty".