4070720 has 28 divisors (see below), whose sum is σ = 9694164. Its totient is φ = 1628160.

The previous prime is 4070711. The next prime is 4070723. The reversal of 4070720 is 270704.

It can be written as a sum of positive squares in 2 ways, for example, as 2611456 + 1459264 = 1616^2 + 1208^2 .

It is a super-2 number, since 2×4070720² = 33141522636800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4070692 and 4070701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4070723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6041 + ... + 6680.

Almost surely, 2^4070720 is an apocalyptic number.

4070720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4070720 is an abundant number, since it is smaller than the sum of its proper divisors (5623444).

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

4070720 is a wasteful number, since it uses less digits than its factorization.

4070720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738 (or 12728 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 4070720 is about 2017.6025376669. The cubic root of 4070720 is about 159.6701538099.

The spelling of 4070720 in words is "four million, seventy thousand, seven hundred twenty".